How Reusable Respirators Work and Common Mistakes to Avoid

While disposable respirators are primarily used for airborne particles, reusable respirators are more versatile. With the right cartridges or filters, they may help filter out not only particles, but also gases, vapors, or any combinations of these airborne hazards. Reusable respirators consist of a face piece, adjustable head harness, neck strap, and a filter or cartridge. When fit-tested and worn properly, the face piece forms a tight seal to the face helping prevent contaminated air from leaking in and around the face seal. Inhaled air is drawn in through the cartridges or filters where the contaminants are filtered helping provide cleaner air to the wearer. Exhaled air is then released through a one-way valve called an exhalation valve.

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