On Friday, July 6, 2018 at 11:11:59 PM UTC-5, Dr. Deb wrote:
> If I were to buy a filtered face mask, which one would you recommend, and=
why?
>=20
> Thanks
>=20
> Deb
The most important criteria for selecting a filtered face mask is to select=
one that fits your purpose. For non poisonous dusts, I use a paper, dispos=
able N-95 rated mask from a reputable maker like, Norton, 3M, etc.
When I spray latex or oil, I use a rubber mask with replaceable filters. T=
his is the newest iteration of the ones I use:
https://www.homedepot.com/p/3M-Professional-Multi-Purpose-Respirator-Black-=
Drop-Down-63023DHA1-C/206408987
Note that the difference is the filtering. The cartridges for this mask ke=
ep out almost 100% of all the bad stuff from paints and solvents including =
the ammonia and formaldehyde from latex, and all the petroleum solvents in =
oil base. =20
Cartridges on these masks have a life span on them, so if you buy this mask=
, use it mask until it gets a little difficult to breathe then replace the =
cartridges. Since the charcoal loses its efficacy after about 90 days, if I=
start a new project, I just buy new filters. Much easier than getting new=
lungs.
Robert
On Fri, 6 Jul 2018 21:11:57 -0700 (PDT)
"Dr. Deb" <[email protected]> wrote:
> If I were to buy a filtered face mask, which one would you recommend,
> and why?
depends on what for
and how long you wear it
on occasion i wear n99 and face shield and due to faster breaths needed
the shield fogs up more quickly
usually resort to goggle and n99 and still i only do 20 minute intervals
and then clear for a few minutes