These are the simplest and least expensive type of respirator. They also offer the least protection because they are only effective at blocking and filtering airborne particles. They do not ...

The C.D.C. also said regular surgical masks were ... Well-fitting disposable surgical masks and KN95s — another type of respirator mask — are more protective than all cloth masks, and ...

I use a 3M respirator with OV (Organic Vapor) cartridges. They work wonders for pretty much all the solvents I might use, plus are listed at P100 for particulates. Stains, polyurethane, mineral ...