I use a P100 mask and have recently taken to stretching a cloth mask over the exhaust valve—I figure that way my exhalations are filtered about as well as they would be with an ordinary cloth mask, while my inhalations are far more protected.
The quality of these filters is really good, by the way—at one point I was standing near a small fire in a trash can and could not smell it in the slightest, to the point where I was quite surprised to smell the fire after pulling down the mask to be more clearly audible on a phone call!
I use a P100 mask and have recently taken to stretching a cloth mask over the exhaust valve—I figure that way my exhalations are filtered about as well as they would be with an ordinary cloth mask, while my inhalations are far more protected.
The quality of these filters is really good, by the way—at one point I was standing near a small fire in a trash can and could not smell it in the slightest, to the point where I was quite surprised to smell the fire after pulling down the mask to be more clearly audible on a phone call!