True or False? A dust mask is considered a respirator when protecting against airborne particles.

A dust mask is typically not classified as a respirator because it does not provide the same level of protection as respirators designed for airborne contaminants. A true respirator is a device that has been tested and certified to filter out specific air contaminants and ensure a proper seal on the wearer's face, thereby protecting them from inhaling harmful particles, including dust, mist, vapors, and gases.

Dust masks may help filter out larger particles but do not offer the same filtration efficiency or fit as a full-fledged respirator. They are often used for nuisance dust and not suitable for environments with more hazardous airborne particles.

The classification of respirators involves standards set by organizations such as the National Institute for Occupational Safety and Health (NIOSH), which establishes criteria for respiratory protection devices to ensure maximum effectiveness in protecting against harmful exposures.