APR and PAPR stand for which of the following?

APR and PAPR stand for which of the following?

• A. Portable Air Purifying Respirator
• B. Powered Air Purifying Respirator
• C. Pressure Air Purifying Respirator
• D. Personal Air Purifying Respirator

Answer: (B)

In this topic, the idea is how respirator names describe how the device cleans air. APR refers to the general class of respirators that purify ambient air, while PAPR is the powered variant of that same concept—meaning it uses a motor-driven blower to push air through the filters to the wearer. Powered Air Purifying Respirator is the best answer because it directly describes the device that both acronyms point to in practice: air is purified and a powered mechanism provides the air flow. The other options don’t fit standard terminology: they either change the meaning of the acronym (Portable, Pressure, Personal) or omit the “Powered” aspect that distinguishes the PAPR from non-powered APRs.

In this topic, the idea is how respirator names describe how the device cleans air. APR refers to the general class of respirators that purify ambient air, while PAPR is the powered variant of that same concept—meaning it uses a motor-driven blower to push air through the filters to the wearer.

Powered Air Purifying Respirator is the best answer because it directly describes the device that both acronyms point to in practice: air is purified and a powered mechanism provides the air flow. The other options don’t fit standard terminology: they either change the meaning of the acronym (Portable, Pressure, Personal) or omit the “Powered” aspect that distinguishes the PAPR from non-powered APRs.