How many hours a day do you typically spend wearing your respirator?
Have you had a professional fit test to see whether your respirator is making an adequate seal? Many folks wear these things far too loosely to pass a basic fitment test.
How many hours a day do you spend moving objects that weight >20lbs while wearing your respirator?
How often do you work on days >30C while decked out in your respirator?
Do you keep your face shaved baby smooth at all times?