Respirators protect workers from inhaling dangerous material that can cause acute or chronic respiratory problems. Acute conditions occur suddenly and usually involve a severe reaction to exposure of dust, chemicals or other substances. In contrast, a chronic condition is persistent or long lasting and can be caused by either a single exposure or continuous exposure to an adverse substance. Employers protect workers from respiratory problems by providing exposure elimination or control mechanisms, such as a respirator or dust mask.Dust mask or respirator?A dust mask is commonly used when cleaning equipment, mowing grass and concrete cutting. Disposable N95 dust respirators are
