What is the primary purpose of air-purifying respirators?

The primary purpose of air-purifying respirators is to filter clean breathing air from the environment. These respirators work by using filters to remove contaminants from the air before it is inhaled by the user. This makes them essential in environments where hazardous airborne particles, gases, or vapors may be present.

Unlike options that focus on supplying air from an external source or providing comfort through cushioning, air-purifying respirators depend on the ambient air, treating it to make it safe for inhalation. They are effective in various settings, such as industrial workplaces or during certain medical procedures, where maintaining air quality is crucial for safety. Though comfort and protection from temperature extremes can be additional considerations in the design of these devices, the fundamental function remains their ability to purify inhaled air.