What are the two types of respirators?

What are the two types of respirators?

• A. Dust and water
• B. Air purifying and air supplying
• C. Chemical and gas
• D. Mechanical and electronic

Answer: (B)

Respirators are categorized by how they deliver breathable air. The two types are air-purifying and air-supplying. An air-purifying respirator cleans contaminants from the air you breathe using filters or cartridges, so it’s used when there’s enough oxygen and the contaminants can be removed by filtration. An air-supplying respirator provides clean air from a separate source, such as a compressed-air line or a tank, and is used when the environment lacks sufficient oxygen or contaminants can’t be adequately filtered.

Respirators are categorized by how they deliver breathable air. The two types are air-purifying and air-supplying. An air-purifying respirator cleans contaminants from the air you breathe using filters or cartridges, so it’s used when there’s enough oxygen and the contaminants can be removed by filtration. An air-supplying respirator provides clean air from a separate source, such as a compressed-air line or a tank, and is used when the environment lacks sufficient oxygen or contaminants can’t be adequately filtered.