Which of the following options is used when requiring a filtered air supply for respiratory protection?

• A. Supplied-air hood
• B. SCBA
• C. Level B suit
• D. Splash protection PPE

Answer: (A)

The correct answer is the supplied-air hood, which is specifically designed to provide filtered air for respiratory protection in environments where breathable air may be contaminated or where the concentration of hazardous substances exceeds safe levels. This type of equipment connects to a remote air supply, ensuring that the wearer receives clean, filtered air.

Supplied-air hoods are typically used in scenarios where high levels of hazardous materials are present, allowing personnel to operate safely for extended periods without the risk of inhaling toxic substances. This makes them optimal for situations such as industrial or chemical spills, where immediate air safety is crucial.

In contrast, while self-contained breathing apparatus (SCBA) does provide respiratory protection, it relies on a built-in air supply rather than filtered air from an external source. Level B suits are designed to protect against specific hazardous materials but do not provide an independent air supply; they complement SCBA in protection measures. Splash protection PPE focuses primarily on protecting the skin and body from liquids and may not offer any form of air supply, making it unsuitable for situations that require filtered air.