niosh recommends the use of half facepiece particulate respirators with n95 or better filters for airborne exp
NIOSH recommends the use of half-facepiece particulate respirators with N95 or better filters for airborne exposures to crystalline silica at concentrations less than or equal to 0.5 milligrams per cubic meter of air (mg/m3). #100yrsRespirators
n95 ffrs are the most readily available type protecting against airborne particulates however n95s are ineffec
N95 FFRs are the most readily-available type, protecting against airborne particulates. However, N95s are ineffective against oil-based agents, like some solvents / paints / pesticides. That require a higher-level FFR, such as a P100 #100yrsRespirators
opening the door of an airplane is perfectly fine so long as you work for the airline whats not ok is trying t
Opening the door of an airplane is perfectly fine, so long as you work for the airline. What’s not OK is trying to do so as a passenger. And it’s most certainly a problem to do so while the plane is airborne.