A simple way to reuse disposable face masks?
 

Rod Speed wrote:



"Kelly" wrote in message
...
polygonum_on_google wrote:

On Saturday, 18 April 2020 20:44:34 UTC+1, Kelly wrote:

I think I'm edging towards the compromise (until I get more supplies -
as needed) of maybe re-using disposable face masks, say 2 or 3 times,
by sterilising them in a pressure cooker. I'll review things as they
go along, and hope to keep healthy all the while.

We have home-made cotton masks (made to fit by partner).

I've also been considering making my own cotton masks after coming
across this Cambridge Uni publication (the full-text PDF can be
downloaded) which shows just how effective, for example, a doubled-up
tea towel material face mask can be.

https://www.researchgate.net/publica...54e85/download

Cut up vacuum cleaner bags work much better.
https://www.abc.net.au/radio/program...virus/12123574

Yes, those came out very well in that Cambridge Uni write-up too,
though I did wonder how you could get a 'passable look' wearing a face
mask made up of vacuum cleaner bags. If you make a cotton mask that
looks like any other face mask but you leave a pocket between the
mask's two cotton layers into which you can insert your Hepa vacuum
cleaner bag filter you can accomplish a decent look. It all sounds a
bit unprofessional but it's breathable and seems to work acceptably
well.

All of a sudden, I'm spoilt for choice... happy days!

A simple way to reuse disposable face masks?
 

Roland Perry wrote:

In message , at 08:28:09
on Sat, 18 Apr 2020, Kelly remarked:

I've been hoping I could find a relatively easy way to sterilise,
clean and reuse my coronavirus protection face masks, without the need
of powerful disinfectants and alcohol (which are of course also in
short supply). Then I came across this method online where a guy
reckons it's possible to do all this with just soap, hot water and a
toothbrush (it's almost as easy as washing your hands).

What's wrong with a simple pan of boiling water?

Don't tell me that would suffice? All these do's and don'ts they come
up with online - all sorts, as long, seemingly, as it's not too easy.
Why don't they just say that? So, dip the mask in a saucepan of
boiling water, say for what, 5-10 minutes, even squirt in a little
washing up liquid for good measure - would that do it? That would be
similar to laundering the mask at a very high temperature.

A simple way to reuse disposable face masks?
 

polygonum_on_google wrote:
On Saturday, 18 April 2020 20:44:34 UTC+1, Kelly wrote:
Paul wrote:

If you were working with a patient with drug-resistant TB,
C.Difficile, and COVID-19, the cleaning procedure would
have to cover those too. Whereas a home user, you would
hope that drug-resistant TB isn't present. The TB thing
is one thing I feared at our local hospital. And they bring
people from remote areas, hundreds of miles to my hospital,
so they can cough on us :-) Well, they gotta go somewhere...
My hospital is pretty good about putting masks on people,
where their range of conditions include the possibility of
tuberculosis. The more trips I make to the hospital, the
more I learn about weaknesses in the system.

That's another reason for the gamma ray thing. An attempt
at total coverage.

It would be better to be making masks out of something "more permanent"
that can take a healthy dose of gamma. That would be a kind of
"end-to-end" design, rather than trying to retrofit a process
to something intended to be disposable.
Yes, definitely, if working or coming into contact with contagious
hospital patients I would want the best PPE possible, the full kit. I
am only messing about trying to re-use disposable masks to go
shopping, down the supermarket, say. And we are not suppose to deprive
our NHS front line workers of their stuff by buying up all the best
face masks, even if we could get hold of them, not to mention afford
them, that is.

I think I'm edging towards the compromise (until I get more supplies -
as needed) of maybe re-using disposable face masks, say 2 or 3 times,
by sterilising them in a pressure cooker. I'll review things as they
go along, and hope to keep healthy all the while.

We have home-made cotton masks (made to fit by partner). Obviously, we have no way of actually testing. But our choice is to steam iron them. Apparently (from some reasonably sensible sources) ten seconds full blast steam just might be enough to sterilise them adequately. Obviously, not thinking about the worst possible pathogens as we each have our own and no-one else will even touch them.

I think the odds are good enough that it will work.

In a test of materials for making masks (by a company making
masks), cotton Tshirts were the best compromise between
arrestance (the difficulty of breathing through the solution),
versus performance. While the vacuum cleaner bag filter
achieved higher filtering performance, it was too hard
to breathe through to make a good mask material.

The trick with making a mask, is fitting the face and
not leaving a gap where all the air is really flowing.
If I tied a bandanna across my face, and the material
had any sort of arrestance, the air just flows through
the gap between the mask and your nose.

I was wearing some mask six months ago (a hospital mask
donned because the staff didn't know at that point whether
I might have TB), and the metallic nose-piece, you just
couldn't adjust the damn thing for an airtight fit. As
soon as you stopped pressing on it, it would spring back
a bit and bam, no seal. Once I'd had a biopsy and the
test came back "no cancer, no TB", then on my next visit
I didn't have to wear a mask. That just goes to show, that
for purpose-built masks (not DIY ones), they still can't
come up with a good/cheap solution for fit. For preventing me
from coughing on people (droplets), it was a perfectly
good solution - for preventing me from catching stuff
from someone else, not so much.

Paul

A simple way to reuse disposable face masks?
 

Kelly wrote:
I've been hoping I could find a relatively easy way to sterilise,
clean and reuse my coronavirus protection face masks, without the need
of powerful disinfectants and alcohol (which are of course also in
short supply). Then I came across this method online where a guy
reckons it's possible to do all this with just soap, hot water and a
toothbrush (it's almost as easy as washing your hands).

The guy plausibly (I thought) explains his method in a video:

https://diyjoy.com/how-to-sterilize-a-face-mask/

Could I please ask the 'experts' here in this newsgroup if they think
this is a good idea... or not?


Here's a recent article.

https://www.cbc.ca/news/health/disin...rays-1.5536516

"Disinfectants are effective against coronaviruses

It's true that disinfectants effectively kill coronaviruses.

Coronaviruses are enveloped viruses, which means they are protected by
an "envelope" made of lipids or grease that is easily dissolved by
cleaners and leaves the virus itself vulnerable.

"This means they are one of the easiest types of viruses to
kill with the appropriate disinfectant when used according
to the label directions," says Health Canada.

It recommends cleaning high-touch surfaces such as door handles and phones with either:

Regular household cleaners.
Diluted bleach (one part bleach to 50 parts water).

It has also published a list of disinfectants that are likely to be
effective against COVID-19 on hard surfaces.
"

The tone of the article, makes it sound easy, but you have
to be careful as to how you interpret that. What is a regular
household cleaner ??? At least the sentence about bleach
gives some idea about the kind of strength they have in
mind. The bleach I've got, I wouldn't use that on a mask, as
the smell wouldn't go away.

I think I have only one bar soap here, that would make an
acceptable cleaner, as you can rinse it away when you're done.
After thorough drying, the smell would almost be gone.

COVID is not supposed to survive as nicely on cloth as
on hard surfaces. Stainless steel for example, is one
of the worst surfaces, in that it encourages the COVID to
survive. A stainless steel door knob then, would be a bad item,
and would be a cleaning target.

Paul

A simple way to reuse disposable face masks?
 

"Roland Perry" wrote in message
...
In message , at 08:28:09 on
Sat, 18 Apr 2020, Kelly remarked:

I've been hoping I could find a relatively easy way to sterilise,
clean and reuse my coronavirus protection face masks, without the need
of powerful disinfectants and alcohol (which are of course also in
short supply). Then I came across this method online where a guy
reckons it's possible to do all this with just soap, hot water and a
toothbrush (it's almost as easy as washing your hands).

What's wrong with a simple pan of boiling water?

It ****s the mask.

A simple way to reuse disposable face masks?
 

On 19/04/2020 08:02, Roland Perry wrote:
In message , at 08:28:09
on Sat, 18 Apr 2020, Kelly remarked:

I've been hoping I could find a relatively easy way to sterilise,
clean and reuse my coronavirus protection face masks, without the need
of powerful disinfectants and alcohol (which are of course also in
short supply). Then I came across this method online where a guy
reckons it's possible to do all this with just soap, hot water and a
toothbrush (it's almost as easy as washing your hands).

What's wrong with a simple pan of boiling water?

Or just hanging it outside on a washing line (dry) and let the airflow
and UV do the job.

Buy a ozone generator and use it in a sealed plastic box with the mask.

--
mailto : news {at} admac {dot} myzen {dot} co {dot} uk

A simple way to reuse disposable face masks?
 

On Sunday, 19 April 2020 09:12:11 UTC+1, Kelly wrote:
I did wonder how you could get a 'passable look' wearing a face
mask made up of vacuum cleaner bags.

If you want a "look" I got an email from Vistaprint who have jumped on the bandwagon and are offering custom printed masks, although they're very clear they're not PPE or intended to be worn in hospitals. So not much use then.

Owain

A simple way to reuse disposable face masks?
 

On 19/04/2020 09:14, Kelly wrote:
Roland Perry wrote:

In message , at 08:28:09
on Sat, 18 Apr 2020, Kelly remarked:

I've been hoping I could find a relatively easy way to sterilise,
clean and reuse my coronavirus protection face masks, without the need
of powerful disinfectants and alcohol (which are of course also in
short supply). Then I came across this method online where a guy
reckons it's possible to do all this with just soap, hot water and a
toothbrush (it's almost as easy as washing your hands).

What's wrong with a simple pan of boiling water?

Don't tell me that would suffice? All these do's and don'ts they come
up with online - all sorts, as long, seemingly, as it's not too easy.
Why don't they just say that? So, dip the mask in a saucepan of
boiling water, say for what, 5-10 minutes, even squirt in a little
washing up liquid for good measure - would that do it? That would be
similar to laundering the mask at a very high temperature.



Why boiling water with detergent. You don't wash your hands in boiling
water!

--
mailto : news {at} admac {dot} myzen {dot} co {dot} uk

Lonely Auto-contradicting Psychotic Senile Ozzie Troll Alert! LOL
 

On Sun, 19 Apr 2020 19:41:24 +1000, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:


It ****s the mask.

So what ****ed YOU, you totally ****ed up 86-year-old senile cretin? Was it
your cantankerousness?

--
Website (from 2007) dedicated to the 86-year-old trolling senile
cretin from Oz:
https://www.pcreview.co.uk/threads/r...d-faq.2973853/

A simple way to reuse disposable face masks?
 

"alan_m" wrote in message
...
On 19/04/2020 08:02, Roland Perry wrote:
In message , at 08:28:09
on Sat, 18 Apr 2020, Kelly remarked:

I've been hoping I could find a relatively easy way to sterilise,
clean and reuse my coronavirus protection face masks, without the need
of powerful disinfectants and alcohol (which are of course also in
short supply). Then I came across this method online where a guy
reckons it's possible to do all this with just soap, hot water and a
toothbrush (it's almost as easy as washing your hands).

What's wrong with a simple pan of boiling water?

Or just hanging it outside on a washing line (dry) and let the airflow and
UV do the job.

Buy a ozone generator and use it in a sealed plastic box with the mask.

Or have enough so you can leave it for a week before using it again.

A simple way to reuse disposable face masks?
 

"alan_m" wrote in message
...
On 19/04/2020 09:14, Kelly wrote:
Roland Perry wrote:

In message , at 08:28:09
on Sat, 18 Apr 2020, Kelly remarked:

I've been hoping I could find a relatively easy way to sterilise,
clean and reuse my coronavirus protection face masks, without the need
of powerful disinfectants and alcohol (which are of course also in
short supply). Then I came across this method online where a guy
reckons it's possible to do all this with just soap, hot water and a
toothbrush (it's almost as easy as washing your hands).

What's wrong with a simple pan of boiling water?

Don't tell me that would suffice? All these do's and don'ts they come
up with online - all sorts, as long, seemingly, as it's not too easy.
Why don't they just say that? So, dip the mask in a saucepan of
boiling water, say for what, 5-10 minutes, even squirt in a little
washing up liquid for good measure - would that do it? That would be
similar to laundering the mask at a very high temperature.

Why boiling water with detergent.

Because boiling water will kill the virus
and the detergent will kill its lipid coat.

You don't wash your hands in boiling water!

Because that will burn your hands, bit not the mask.

A simple way to reuse disposable face masks?
 

In message , at 08:14:34
on Sun, 19 Apr 2020, Kelly remarked:
Roland Perry wrote:

In message , at 08:28:09
on Sat, 18 Apr 2020, Kelly remarked:

I've been hoping I could find a relatively easy way to sterilise,
clean and reuse my coronavirus protection face masks, without the need
of powerful disinfectants and alcohol (which are of course also in
short supply). Then I came across this method online where a guy
reckons it's possible to do all this with just soap, hot water and a
toothbrush (it's almost as easy as washing your hands).

What's wrong with a simple pan of boiling water?

Don't tell me that would suffice?

Why wouldn't it?

All these do's and don'ts they come up with online - all sorts, as
long, seemingly, as it's not too easy. Why don't they just say that?
So, dip the mask in a saucepan of boiling water, say for what, 5-10
minutes, even squirt in a little washing up liquid for good measure -
would that do it? That would be similar to laundering the mask at a
very high temperature.

Which is what nurses have to do with their uniforms since time
immemorial. It's even got a name "a boil wash" (albeit 90 degrees
rather than 100)

--
Roland Perry

A simple way to reuse disposable face masks?
 

On 19/04/2020 10:59, alan_m wrote:
On 19/04/2020 09:14, Kelly wrote:
Roland Perry wrote:

In message , at 08:28:09
on Sat, 18 Apr 2020, Kelly remarked:

I've been hoping I could find a relatively easy way to sterilise,
clean and reuse my coronavirus protection face masks, without the need
of powerful disinfectants and alcohol (which are of course also in
short supply). Then I came across this method online where a guy
reckons it's possible to do all this with just soap, hot water and a
toothbrush (it's almost as easy as washing your hands).

What's wrong with a simple pan of boiling water?

Don't tell me that would suffice? All these do's and don'ts they come
up with online - all sorts, as long, seemingly, as it's not too easy.
Why don't they just say that? So, dip the mask in a saucepan of
boiling water, say for what, 5-10 minutes, even squirt in a little
washing up liquid for good measure - would that do it? That would be
similar to laundering the mask at a very high temperature.


Why boiling water with detergent. You don't wash your hands in boiling
water!

washing hands is designed to rid the hands of surface contamination
Boiling is designed to kill in situ **** in the fabric pores

since we cant actually boil hands we use sanitiser gel instead



--
€œThere are two ways to be fooled. One is to believe what isnt true; the
other is to refuse to believe what is true.€�

€”Soren Kierkegaard

Lonely Auto-contradicting Psychotic Senile Ozzie Troll Alert! LOL
 

On Sun, 19 Apr 2020 20:04:39 +1000, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:


What's wrong with a simple pan of boiling water?

Or just hanging it outside on a washing line (dry) and let the airflow and
UV do the job.

Buy a ozone generator and use it in a sealed plastic box with the mask.

Or have enough so you can leave it for a week before using it again.

And? Did you buy enough, or are you just blathering for blathering's sake
again, senile asshole?

--
Website (from 2007) dedicated to the 86-year-old trolling senile
cretin from Oz:
https://www.pcreview.co.uk/threads/r...d-faq.2973853/

A simple way to reuse disposable face masks?
 

Paul wrote:

Here's a recent article.

https://www.cbc.ca/news/health/disin...rays-1.5536516

The tone of the article, makes it sound easy, but you have
to be careful as to how you interpret that. What is a regular
household cleaner ??? At least the sentence about bleach
gives some idea about the kind of strength they have in
mind. The bleach I've got, I wouldn't use that on a mask, as
the smell wouldn't go away.

I've had to change my views, over the last day really, on a many
aspects of face masks as so many new opinions and facts have been
brought to my attention. Bleach, for example, I can see why online you
would often be told not to use that to serialise face masks. But, as
you point out, the strength of any bleach needs to be taken into
account to ensure relative safely of use, and because of the weakest
link (i.e. someone who would just use any bleach straight out of the
bottle) it's more responsible to simple tell us all: 'Don't use
bleach'. Yet if you can get the strength right and you're not left
with a mask full of bleach fumes, who knows?

I think I have only one bar soap here, that would make an
acceptable cleaner, as you can rinse it away when you're done.
After thorough drying, the smell would almost be gone.

COVID is not supposed to survive as nicely on cloth as
on hard surfaces. Stainless steel for example, is one
of the worst surfaces, in that it encourages the COVID to
survive. A stainless steel door knob then, would be a bad item,
and would be a cleaning target.

Yes, there is a lot to consider. You can't know too much but I suppose
the trick is to at least know enough.

A simple way to reuse disposable face masks?
 

A simple way to reuse disposable face masks?
 

Roland Perry wrote:

In message , at 08:14:34
on Sun, 19 Apr 2020, Kelly remarked:
Roland Perry wrote:

In message , at 08:28:09
on Sat, 18 Apr 2020, Kelly remarked:

I've been hoping I could find a relatively easy way to sterilise,
clean and reuse my coronavirus protection face masks, without the need
of powerful disinfectants and alcohol (which are of course also in
short supply). Then I came across this method online where a guy
reckons it's possible to do all this with just soap, hot water and a
toothbrush (it's almost as easy as washing your hands).

What's wrong with a simple pan of boiling water?

Don't tell me that would suffice?

Why wouldn't it?

All these do's and don'ts they come up with online - all sorts, as
long, seemingly, as it's not too easy. Why don't they just say that?
So, dip the mask in a saucepan of boiling water, say for what, 5-10
minutes, even squirt in a little washing up liquid for good measure -
would that do it? That would be similar to laundering the mask at a
very high temperature.

Which is what nurses have to do with their uniforms since time
immemorial. It's even got a name "a boil wash" (albeit 90 degrees
rather than 100)

True, it is as you say. And I am confident this will suffice for the
cotton masks I'm going to make. (A filter layer element, which I'll be
able to slip in and out of the mask, I'm going to consider as being
replaceable.) So, I no longer see any problem there.

A simple way to reuse disposable face masks?
 

Rod Speed wrote:

"Roland Perry" wrote in message
...
In message , at 08:28:09 on
Sat, 18 Apr 2020, Kelly remarked:

I've been hoping I could find a relatively easy way to sterilise,
clean and reuse my coronavirus protection face masks, without the need
of powerful disinfectants and alcohol (which are of course also in
short supply). Then I came across this method online where a guy
reckons it's possible to do all this with just soap, hot water and a
toothbrush (it's almost as easy as washing your hands).

What's wrong with a simple pan of boiling water?

It ****s the mask.

When dealing with cotton masks (with their replaceable Hepa Vacuum bag
filters, for example) this surely won't be a problem as the filter
need not go through the 'wash'.

And for N45 mask where you could have concerns about damaging the
filtering mechanism of the mask I have found this research paper:

https://www.reddit.com/user/135666666677774E3/

It says that dry heat applied by a household electric hair drier for
30 minutes "doesn't affect the masks original filter retention effect,
and the contaminated viruses are inactivated".

That is time consuming but a combination of those methods (boiling
water or dry heat), depending upon which mask is being treated, I
would hope should be workable.

A simple way to reuse disposable face masks?
 

Chris Hogg wrote:

On Sun, 19 Apr 2020 14:25:20 GMT, (Kelly)
wrote:

And I am confident this will suffice for the
cotton masks I'm going to make. (A filter layer element, which I'll be
able to slip in and out of the mask, I'm going to consider as being
replaceable.) So, I no longer see any problem there.

A potential problem with your removable/replaceable filter: if the
filter element has significant 'arrestance', then when you inhale, the
air will bypass the filter and just go round the edges through the
cotton. You'll have to be a bit clever with the design to prevent
that.

Arrestance? That a new word I had to look up before adding it to my
'vocabulary enhancer list'. I've been looking at face mask patterns
online and note that as well as having good adjustable ties, you also
need to incorporate a 'wire' to help fit the upper mask edge snugly
around your nose and cheeks (and not to use any old wire because you
don't want it to soon start rusting during 'washes'). Also,
incidentally, it has been brought to my notice that you can still
readily acquire non-woven meltblown breathable filter fabric from, for
example, eBay. So I'm thinking about maybe using that as the filter
layer.

But, thanks for the tip - I appreciate it is important to be careful
to avoid any significant 'arrestance' (at least I can make it sound
like I know what I'm doing :).

Lonely Auto-contradicting Psychotic Senile Ozzie Troll Alert! LOL
 

On Sun, 19 Apr 2020 20:12:58 +1000, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:


Because boiling water will kill the virus
and the detergent will kill its lipid coat.

You claimed earlier in this thread that you can't boil it because "it ****s
the mask's filtering capability", you psychopathic bull**** artist!!!!!!

--
John addressing the senile Australian pest:
"You are a complete idiot. But you make me larf. LOL"
MID:

A simple way to reuse disposable face masks?
 

"Kelly" wrote in message
...

Chris Hogg wrote:

On Sun, 19 Apr 2020 14:25:20 GMT, (Kelly)
wrote:

And I am confident this will suffice for the
cotton masks I'm going to make. (A filter layer element, which I'll be
able to slip in and out of the mask, I'm going to consider as being
replaceable.) So, I no longer see any problem there.

A potential problem with your removable/replaceable filter: if the
filter element has significant 'arrestance', then when you inhale, the
air will bypass the filter and just go round the edges through the
cotton. You'll have to be a bit clever with the design to prevent
that.

Arrestance? That a new word I had to look up before adding it to my
'vocabulary enhancer list'. I've been looking at face mask patterns
online and note that as well as having good adjustable ties, you also
need to incorporate a 'wire' to help fit the upper mask edge snugly
around your nose

Correct!!!!

and cheeks (and not to use any old wire because you
don't want it to soon start rusting during 'washes'). Also,
incidentally, it has been brought to my notice that you can still
readily acquire non-woven meltblown breathable filter fabric from, for
example, eBay. So I'm thinking about maybe using that as the filter
layer.

But, thanks for the tip - I appreciate it is important to be careful
to avoid any significant 'arrestance' (at least I can make it sound
like I know what I'm doing :).



--
This email has been checked for viruses by AVG.
https://www.avg.com

A simple way to reuse disposable face masks?
 

"Kelly" wrote in message
...
Rod Speed wrote:

"Roland Perry" wrote in message
...
In message , at 08:28:09
on
Sat, 18 Apr 2020, Kelly remarked:

I've been hoping I could find a relatively easy way to sterilise,
clean and reuse my coronavirus protection face masks, without the need
of powerful disinfectants and alcohol (which are of course also in
short supply). Then I came across this method online where a guy
reckons it's possible to do all this with just soap, hot water and a
toothbrush (it's almost as easy as washing your hands).

What's wrong with a simple pan of boiling water?

It ****s the mask.

When dealing with cotton masks (with their replaceable Hepa Vacuum bag
filters, for example) this surely won't be a problem as the filter
need not go through the 'wash'.

I agree. It wont do the outer cotton container any harm.

And for N45 mask where you could have concerns about damaging
the filtering mechanism of the mask I have found this research paper:

https://www.reddit.com/user/135666666677774E3/

It says that dry heat applied by a household electric hair drier for
30 minutes "doesn't affect the masks original filter retention effect,
and the contaminated viruses are inactivated".

Yeah, it's the boiling water that ****s the mask filtering propertys.

That is time consuming but a combination of those methods
(boiling water or dry heat), depending upon which mask is
being treated, I would hope should be workable.

Yeah, should be fine. But letting it sit for a week between
uses will see the virus dead too.

A simple way to reuse disposable face masks?
 

On Sunday, 19 April 2020 09:12:11 UTC+1, Kelly wrote:


Yes, those came out very well in that Cambridge Uni write-up too,
though I did wonder how you could get a 'passable look' wearing a face
mask made up of vacuum cleaner bags. If you make a cotton mask that
looks like any other face mask but you leave a pocket between the
mask's two cotton layers into which you can insert your Hepa vacuum
cleaner bag filter you can accomplish a decent look. It all sounds a
bit unprofessional but it's breathable and seems to work acceptably
well.

All of a sudden, I'm spoilt for choice... happy days!

As we have some spare (old, no vacuum cleaner of the make they fit) bags, we tried one in exactly that way. Our cotton masks were made with the possibility of inserting an extra filter layer. Both coffee filter and vacuum cleaner bags were intolerably hard to breathe through.

Lonely Auto-contradicting Psychotic Senile Ozzie Troll Alert! LOL
 

On Mon, 20 Apr 2020 07:15:09 +1000, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:

FLUSH the trolling senile cretins' latest troll**** unread

--
about senile Rot Speed:
"This is like having a conversation with someone with brain damage."
MID:

A simple way to reuse disposable face masks?
 

On Sun, 19 Apr 2020 14:32:15 -0700 (PDT), polygonum_on_google
wrote:

On Sunday, 19 April 2020 09:12:11 UTC+1, Kelly wrote:


Yes, those came out very well in that Cambridge Uni write-up too,
though I did wonder how you could get a 'passable look' wearing a face
mask made up of vacuum cleaner bags. If you make a cotton mask that
looks like any other face mask but you leave a pocket between the
mask's two cotton layers into which you can insert your Hepa vacuum
cleaner bag filter you can accomplish a decent look. It all sounds a
bit unprofessional but it's breathable and seems to work acceptably
well.

All of a sudden, I'm spoilt for choice... happy days!

As we have some spare (old, no vacuum cleaner of the make they fit) bags,
we tried one in exactly that way. Our cotton masks were made with the
possibility of inserting an extra filter layer. Both coffee filter and vacuum
cleaner bags were intolerably hard to breathe through.

That is really discouraging news, it looks as though this isn't going
to be as straightforward as I had hoped. So, I will have to be
prepared to try a few things in the hope of finding something
workable, then.

Next thing, I'm going to order some of that non-woven meltblown filter
fabric stuff from ebay, it's described as breathable - fingers
crossed.

A simple way to reuse disposable face masks?
 

On 18/04/2020 22:02, Kelly wrote:

Bleach.

Well, bleach will certainly kill any virus contamination (and it's
widely available) but once again the killjoys are out in force. This
time saying, " ...don't use bleach, alcohol or household cleaners to
disinfect masks as ingesting or inhaling these chemicals can be
harmful."

https://eu.usatoday.com/story/news/h...or/2940960001/


One of the good things about chlorine is that it is readily detectable
at a very low (and AFAIK safe) level.

IIRC it does not have the evil property of H2S where a relatively
limited exposure winds down your sensitivity to it, so that it is not
too difficult to end up breathing a toxic dose.

I'm happy to be corrected by someone "in the trade".

One of the things they taught us during fire extinguisher training is
that if using CO2, at the point where you get the "lemonade" taste in
your mouth then you get the hell out and leave it to the guys with B/A sets.

Okay, so I shouldn't totally rule out bleach at this stage then. It's
almost impossible to get everyone in total agreement on certain
things, sometimes you just have to trust your best judgement... I do
get it right now and again. :)


After all, I expect you can taste the chlorine in your water supply at
least some of the time

A simple way to reuse disposable face masks?
 

"newshound" wrote in message
o.uk...
On 18/04/2020 22:02, Kelly wrote:

Bleach.

Well, bleach will certainly kill any virus contamination (and it's
widely available) but once again the killjoys are out in force. This
time saying, " ...don't use bleach, alcohol or household cleaners to
disinfect masks as ingesting or inhaling these chemicals can be
harmful."

https://eu.usatoday.com/story/news/h...or/2940960001/


One of the good things about chlorine is that it is readily detectable
at a very low (and AFAIK safe) level.

IIRC it does not have the evil property of H2S where a relatively
limited exposure winds down your sensitivity to it, so that it is not
too difficult to end up breathing a toxic dose.

I'm happy to be corrected by someone "in the trade".

One of the things they taught us during fire extinguisher training is
that if using CO2, at the point where you get the "lemonade" taste in
your mouth then you get the hell out and leave it to the guys with B/A
sets.

Okay, so I shouldn't totally rule out bleach at this stage then. It's
almost impossible to get everyone in total agreement on certain
things, sometimes you just have to trust your best judgement... I do
get it right now and again. :)

After all, I expect you can taste the chlorine in your water supply at
least some of the time

I never can and I never bother to make tea or coffee anymore, or
even keep it in the fridge, drink it straight out of the tap into a
glass and usually drink it immediately after it has gone in the glass.

Lonely Auto-contradicting Psychotic Senile Ozzie Troll Alert! LOL
 

On Mon, 20 Apr 2020 10:49:43 +1000, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:


I never can and I never bother to make tea or coffee anymore

Like WHO gives a ****, you lonely senile Arsetralian asshole who OBVIOUSLY
got NOBODY in RL to talk to! G

--
FredXX to Rot Speed:
"You are still an idiot and an embarrassment to your country. No wonder
we shipped the likes of you out of the British Isles. Perhaps stupidity
and criminality is inherited after all?"
Message-ID:

A simple way to reuse disposable face masks?
 

Tim Streater wrote:

In article , Kelly
wrote:

Chris Hogg wrote:

On Sun, 19 Apr 2020 14:25:20 GMT, (Kelly)
wrote:

And I am confident this will suffice for the
cotton masks I'm going to make. (A filter layer element, which I'll be
able to slip in and out of the mask, I'm going to consider as being
replaceable.) So, I no longer see any problem there.

A potential problem with your removable/replaceable filter: if the
filter element has significant 'arrestance', then when you inhale, the
air will bypass the filter and just go round the edges through the
cotton. You'll have to be a bit clever with the design to prevent
that.

Arrestance? That a new word I had to look up before adding it to my
'vocabulary enhancer list'.

I think 'vocabulary chancer' is what you're looking for. And you add
the person rather than the word, to the list.

:) I like that - it's more than amusing. Still, coming out with the
odd big word can't be wrong... but it's a fine line which can be
easily overstepped.


ps. I hasten to add I thought the word 'arrestance' was appropriately
used on the occasion under discussion.

A simple way to reuse disposable face masks?
 

The WHO and others keep saying that it is not a given that someone
having survived Covid19 , does not mean that you are immune from
catching it again.
Does that not make a vaccine against Covid19 a futile exercise? as by
the time its produced , the virus has mutated enough to be beyond a
vaccine.


--
Monthly public talks on science topics, Hampshire , England
http://diverse.4mg.com/scicaf.htm

A simple way to reuse disposable face masks?
 

On 20/04/2020 15:58, N_Cook wrote:
The WHO and others keep saying that it is not a given that someone
having survived Covid19 , does not mean that you are immune from
catching it again.
Does that not make a vaccine against Covid19 a futile exercise? as by
the time its produced , the virus has mutated enough to be beyond a
vaccine.


It might. It might be like the common cold - there will be another three
along in a minute - but we all have enough immunity we don't die


--
Truth welcomes investigation because truth knows investigation will lead
to converts. It is deception that uses all the other techniques.

A simple way to reuse disposable face masks?
 

My DIY version of face masks
Converting a one-way valve-type "builders" dust mask , with strong cords
around the back of the head.
Cover the outer surface with micro-fibre cloth that you can spray
coronavirus-specific disinfectant to. As not used in a dust environment,
hang up indoors to dry out and re-spray the outer before next use.
To hold the cloth in place:10 mm or 3/8 inch silicone sleeving, length
of the periphery. Cut axially and staple the join, the bit of overlap
giving just the stretch to hold in place and pull out the ruckles from
curving the sleeving.
Part of my mask design is the outer micro-fibre cloth , as used for only
an hour is damp, from the disinfectant spray, which I assume is better
at trapping aerosols than dry.
A functional note, the loop of silicone sleeving requires 4 small thin
C-clips to reliably hold the cloth around the underlying dust mask.
I sliced up some car-electrics crimp connector plastic sheathing for
c-clips.

With no hand-sanitizing gel available anywhere, use methylated spirits ,
decanted into a small bottle , to reduce any fire hazard, when used in
public places.
My attempts at gelling meths just ended up with snot/slime.
Place a small pill-bottle or similar with a good sealed lid, hidden in
shrubbery or whatever near the front door of your house and get
everyone to douse their hands and house keys before touching the door
furniture and entering.

A simple way to reuse disposable face masks?
 

N_Cook wrote:
The WHO and others keep saying that it is not a given that someone
having survived Covid19 , does not mean that you are immune from
catching it again.
Does that not make a vaccine against Covid19 a futile exercise? as by
the time its produced , the virus has mutated enough to be beyond a
vaccine.

One of the first trials they did, was a dose/response
trial of a prototype blood-based vaccine. And the vaccine used,
was not intended for deployment. It wasn't a candidate
in the sense we would think of it. And I think we
can see why, from the comments from the WHO, exactly
why they were doing a dose/response as their very first
trial, using something which is *not* a candidate vaccine.
To tell whether this might just be... futile.

The test was to show whether a vaccine could respond at all.

The trial was done on volunteers.

I've not seen any reports of that trial being a
"dismal failure". If the scientists were getting
no response at all, the alarms would have gone off by now.

There are currently 70 labs (as of yesterday), working
on a vaccine candidate. Likely with some of the labs
having more of a reputation or track record, than others.

And within the last couple days, there was a report on
a "nasal spray" delivery method. As I keep seeing references
to the desired vaccine response being a lung tissue response,
rather than the (easier to make) blood stream response.
Rather than the nasal spray delivery method being for
"kids afraid of needles", in this case it may be intended
to "get the response from lung tissue".

*******

To keep a long story short, the worst case will be a
"seasonal flu" situation, where every year we make up
a new strain and "give you a jab". That's the worst
job we could do. Every year, the hospital will fill
up with seasonal flu victims, only more will pass than
normal.

We need to do better than that. It's not the fault of
the "vaccine candidate" people. This is a manufacturing
problem we've been trying to lick for 50+ years.
It's like fusion energy, in that a solution is
just around the corner. Only 50 years to go.

If I was a betting man, I'd bet this ends up like
a seasonal flu. Forever. Get the jab. Hope.

Paul

A simple way to reuse disposable face masks?
 

N_Cook wrote

The WHO and others keep saying that it is not a given
that someone having survived Covid19 , does not mean
that you are immune from catching it again.

And that is correct, but that's not certain yet.

It didn't turn out to be true of SARS.

Does that not make a vaccine against Covid19 a futile exercise?

Nope.

as by the time its produced , the virus has
mutated enough to be beyond a vaccine.

There isnt any evidence that its mutating that fast.

UNBELIEVABLE: It's 07:52 am in Australia and the Senile Ozzietard has been out of Bed and TROLLING for OVER SIX HOURS already!!!! LOL
 

On Tue, 21 Apr 2020 07:52:03 +1000, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:

FLUSH the trolling senile asshole's latest troll**** unread

07:52??? LOL And you STILL can't sleep, you subnormal clinically insane
senile idiot? LOL

--
John addressing the senile Australian pest:
"You are a complete idiot. But you make me larf. LOL"
MID:

A simple way to reuse disposable face masks?
 

"Paul" wrote in message
...
N_Cook wrote:
The WHO and others keep saying that it is not a given that someone having
survived Covid19 , does not mean that you are immune from catching it
again.
Does that not make a vaccine against Covid19 a futile exercise? as by the
time its produced , the virus has mutated enough to be beyond a vaccine.

One of the first trials they did, was a dose/response
trial of a prototype blood-based vaccine. And the vaccine used,
was not intended for deployment. It wasn't a candidate
in the sense we would think of it. And I think we
can see why, from the comments from the WHO, exactly
why they were doing a dose/response as their very first
trial, using something which is *not* a candidate vaccine.
To tell whether this might just be... futile.

The test was to show whether a vaccine could respond at all.

The trial was done on volunteers.

I've not seen any reports of that trial being a
"dismal failure". If the scientists were getting
no response at all, the alarms would have gone off by now.

There are currently 70 labs (as of yesterday), working
on a vaccine candidate. Likely with some of the labs
having more of a reputation or track record, than others.

And within the last couple days, there was a report on
a "nasal spray" delivery method. As I keep seeing references
to the desired vaccine response being a lung tissue response,
rather than the (easier to make) blood stream response.
Rather than the nasal spray delivery method being for
"kids afraid of needles", in this case it may be intended
to "get the response from lung tissue".

*******

To keep a long story short, the worst case will be a
"seasonal flu" situation, where every year we make up
a new strain and "give you a jab". That's the worst
job we could do.

Nope, the worst is that a viable vaccine turns
out to not be possible. There has never been
a viable coronavirus vaccine for humans yet.
And that's not for lack of trying either.

Every year, the hospital will fill up with seasonal flu victims, only more
will pass than normal.

That's less clear too given this one doesn't appear
to mutate as fast as flu does and many will have
some carry over immunity very likely and so the
mortality rate may be much lower in future.

We need to do better than that.

Not necessarily if quarantine works. The
quarantine period isnt all that long, only a
couple of weeks to see if you are infectious.

It's not the fault of the "vaccine candidate" people. This is a
manufacturing problem we've been trying to lick for 50+ years.

We have licked it with the slower mutating
stuff like smallpox and polio.

It's like fusion energy, in that a solution is
just around the corner. Only 50 years to go.

Nothing like that in fact.

If I was a betting man, I'd bet this ends up like
a seasonal flu. Forever. Get the jab. Hope.

Its more likely to die out like SARS did.

UNBELIEVABLE: It's 10:01 am in Australia and the Senile Ozzietard has been out of Bed and TROLLING ALL NIGHT and ALL MORNING, yet again!!!! LOL
 

On Tue, 21 Apr 2020 10:01:39 +1000, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:

FLUSH the trolling senile asshole's latest troll**** unread

10:01??? LOL So, AGAIN, you've been up and trolling ALL NIGHT LONG (since
01:20) and ALL MORNING, yet AGAIN, you miserable abnormal senile cretin! And
you are so MISERABLE, you don't even know how to HIDE it! LMAO

--
Sqwertz to Rot Speed:
"This is just a hunch, but I'm betting you're kinda an argumentative
asshole.
MID:

A simple way to reuse disposable face masks?
 

在 2020å¹´4月18日星期å…* UTC+8下å�ˆ4:28:11，Kelly写é�“：
I've been hoping I could find a relatively easy way to sterilise,
clean and reuse my coronavirus protection face masks, without the need
of powerful disinfectants and alcohol (which are of course also in
short supply). Then I came across this method online where a guy
reckons it's possible to do all this with just soap, hot water and a
toothbrush (it's almost as easy as washing your hands).

The guy plausibly (I thought) explains his method in a video:

https://diyjoy.com/how-to-sterilize-a-face-mask/

Could I please ask the 'experts' here in this newsgroup if they think
this is a good idea... or not?

A simple way to reuse disposable face masks?
 

I can provide a mask, please reply if necessary.

A simple way to reuse disposable face masks?
 

在 2020å¹´4月18日星期å…* UTC+8下å�ˆ4:28:11，Kelly写é�“：
I've been hoping I could find a relatively easy way to sterilise,
clean and reuse my coronavirus protection face masks, without the need
of powerful disinfectants and alcohol (which are of course also in
short supply). Then I came across this method online where a guy
reckons it's possible to do all this with just soap, hot water and a
toothbrush (it's almost as easy as washing your hands).

The guy plausibly (I thought) explains his method in a video:

https://diyjoy.com/how-to-sterilize-a-face-mask/

Could I please ask the 'experts' here in this newsgroup if they think
this is a good idea... or not?

I can provide a mask, please reply if necessary.