['Personal Protective Equipment']

['Respiratory Protection']

03/12/2025

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What is adequate air quantity and air flow for atmosphere-supplying respirators?

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What is adequate air quantity and air flow for atmosphere-supplying respirators?

RegSense Personal Protective Equipment Safety & Health Construction Safety General Industry Safety Best Results FAQ Respiratory Protection English Focus Area USA

Compressed air sources must have the capacity to provide an adequate supply of breathing air. Since each airline respirator requires a minimum of 4- 6 cubic feet per minute (cfm) air, compressed air sources should be sized to provide at least this amount of air for each respirator at the operating pressure specified for the particular respirator(s) in use. Proper air flow can then be verified by monitoring airline pressure.

The NIOSH respirator certification process establishes the proper air pressure required for each particular respirator and airline combination. If the air pressure is within the proper range, the air flow should also be correct. For this reason, an air pressure gauge should be installed at the point where the airlines are connected to the air supply manifold.

['Personal Protective Equipment']

['Respiratory Protection']

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