How is a user seal check/fit check performed on a disposable respirator?

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How is a user seal check/fit check performed on a disposable respirator?

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To perform a user seal check on a 3M non-valved, cup shaped disposable respirator, place both hands completely over the respirator and exhale. The respirator should bulge slightly. If air leaks between the face and the faceseal of the respirator reposition it and readjust the nose clip for a more secure seal. If air leaks around the respirator edges, adjust the position on the face and the straps along the sides of the head and recheck fit. If a proper fit cannot be achieved, do not enter the area requiring respiratory protection. See specific product user instructions for the most current user seal check/fit check instructions. To perform a user seal check on a 3M valved, cup shaped disposable respirator, place both hands completely over the respirator and inhale. The respirator should collapse slightly. If air leaks between the face and the faceseal of the respirator reposition it and readjust the nose clip for a more secure seal. If air leaks around the respirator edges, adjust the

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