Review on 💪 Enhanced Efficiency with 3M Advanced Particulate Filter Count by Brian Potter

This is an improved version of the 3m P100 filters. It's easy to breathe. If you're wearing one of these for COVID, cover the outlet with something. I use a sheet mask. The air you exhale is unfiltered and collimated through the orifice, meaning it's expelled with more force. Thus, the mask protects you but not others unless you cover it with another material. Around-the-ear cloth masks fit snugly over the opening and the ties can be attached to the 3m mask by threading their ties through the ties on the cloth mask. So you get P100 filtration and the equivalent of a surgical mask. safer.