A proper fitting is essential. You should test every time by blocking the intake to see if there are leaks. Facial hair will prevent a proper seal.
I use 3M 2097 filters. They’re good for particulate and organic vapours. Very breathable in highly physical environments in my experience. Extremely lightweight.
A proper fitting is essential. You should test every time by blocking the intake to see if there are leaks. Facial hair will prevent a proper seal.
I use 3M 2097 filters. They’re good for particulate and organic vapours. Very breathable in highly physical environments in my experience. Extremely lightweight.
https://www.3mcanada.ca/3M/en_CA/p/d/v000075275/