Has anyone considered using a consumer "air purifier" to eliminate dust in
a
small shop?

I tried an old, and fairly large, Honeywell Hepa filter, but it moved way
too little air to be of much use.


I do use a P100 mask when I am cutting and I use vacuum dust collection on
the tools but that doesn't catch a lot of this fine stuff and I don't want
to have to wear the mask full time in the shop.

A vacuum simply doesn't draw enough air to be particularly useful.
But, and people will disagree with me on this, a real DC is no cure either
on tools that you cannot completely enclose. It is real good on jointer,
planers, and router tables; but not so good on sanders, miter saws and
contractors TS.

I just bought a shop air filter and it is great for soaking up the fine dust
over a period of time, but it is not quick enough to do what you need. I
think you mask is likely to be permanent.