Half facepiece reusable respirators are air-purifying respirators (APR) with a half mask that fits over the nose and under the chin. These half-mask respirators (or half masks) are fitted with dual cartridges that purify the air as the wearer breathes. They are relatively lightweight and offer good protection against particulates and a wide variety of gases and vapors as per NIOSH approvals. Different types of cartridges are available for different types of air contaminants.
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