• Make sure employees leave the use area for any of these reasons:

– To replace air-purifying filters, cartridges, or canisters

– When they smell or taste (detect) vapor or gas leakage from, for example, cartridges, canister, or the facepiece seal

– When they detect changes in breathing resistance

– To readjust their respirators

– To wash their faces and respirators as necessary to prevent skin or eye irritation

– If they become ill

– If they experience sensations of dizziness, nausea, weakness, breathing difficulty, coughing, sneezing, vomiting, fever, or chills.