Question

what type of respirator provides air to the employee from an outside source?

a. gas mask
b. air-purifying
c. combination mechanical and chemical cartridge
d. air-supplying

Explanation:

Analyze the question prompt

The question asks for the type of respirator that provides air to the employee from an outside source.

Evaluate the options

• Gas masks, air-purifying respirators, and combination mechanical/chemical cartridge respirators filter ambient air from the immediate environment.
• Air-supplying respirators deliver clean breathing air directly from an independent, uncontaminated outside source (such as a compressed air cylinder or compressor).

Determine the correct choice

Option D (Air-supplying) is the correct classification.

Answer:

• (A) Gas mask
• (B) Air-purifying
• (C) Combination mechanical and chemical cartridge
• (D) Air-supplying (Correct answer)