What is the term for a respirator connected to a source of clean air by a hose?

What is the term for a respirator connected to a source of clean air by a hose?

• A. Airline Respirators
• B. SCBA
• C. PAPR
• D. APR

Answer: (A)

When a respirator is fed with clean air through a hose from an external source, you’re dealing with a supplied-air system. This setup is commonly called an airline respirator. The air comes from a separate clean-air supply (like a compressor or a large cylinder) and travels to the user, keeping the breathing air independent of the surroundings. That distinguishes it from other types: a self-contained breathing apparatus carries its own air on the wearer, a powered air-purifying respirator uses a blower to move ambient air through filters but doesn’t rely on a hose from a dedicated external air source, and an air-purifying respirator that relies on ambient air without a direct hose supply. The defining feature is the direct connection to a clean air source via hose, establishing a continuous external air supply for the wearer.

When a respirator is fed with clean air through a hose from an external source, you’re dealing with a supplied-air system. This setup is commonly called an airline respirator. The air comes from a separate clean-air supply (like a compressor or a large cylinder) and travels to the user, keeping the breathing air independent of the surroundings. That distinguishes it from other types: a self-contained breathing apparatus carries its own air on the wearer, a powered air-purifying respirator uses a blower to move ambient air through filters but doesn’t rely on a hose from a dedicated external air source, and an air-purifying respirator that relies on ambient air without a direct hose supply. The defining feature is the direct connection to a clean air source via hose, establishing a continuous external air supply for the wearer.