Oxygen deficient atmosphere
All atmosphere with an O2 content below19.5% by volume
Respirator program elements
NRP classification of nonpowered air-purifying particulate filters
N for Not resistant to oil
R for Resistant to oil
P for oil Proof
Selection of NRP classified respirator
N95 respirator
N - not resistant to oil
95 - 95% efficiency
Medical evaluation before fit testing and use
Medical evaluation using a medical questionnaire or an initial medical examination that obtains the same information is required before fit testing.
Annual review of medical status is not required.