hingamaskid
Hingamaskid are protective devices worn over the nose and mouth (and in some designs over the eyes) to filter the air that is inhaled or to provide a supply of clean air. They are used to reduce exposure to airborne hazards such as dust, aerosols, chemical vapors, and infectious agents. Hingamaskid encompass a range of designs, from simple disposable respirators to more complex systems that provide powered air or full-face protection.
Common types include particulate respirators, elastomeric half-face and full-face respirators with replaceable filters or cartridges, gas
Standards and certification vary by region, but typical requirements cover filtration efficiency, fit, and performance. Examples
Usage guidelines emphasize correct selection for the hazard, proper donning and doffing, regular replacement of filters