Huge wrote:

On 2018-01-15, Dave Liquorice wrote:
On 15 Jan 2018 10:57:52 GMT, Huge wrote:

"smoke" this used to be vaporised mineral oil, ie squirt oil onto
something hot and blow the result out of the box. I think they now
use compressed air to atomise the oil. And there are water based
options.

I'm surprised they're allowed to use the oil based systems in places
where the public have access. You don't want to be breathing vapourised
oil for any length of time.

I think the systems use atomised oil now rather than vaporised.

You don't want to be breathing that, either!

(I once went on a course on the care and feeding of breathing air
compressors (for scuba diving) and some of it appears to have stuck!)

Yes. Paraffins (which are about the most unreactive carbon based oils
you can get) are remarkably bad for the lungs.

--

Roger Hayter