What does Level C protection typically consist of?

• A. Fully encapsulating suit with SCBA
• B. Basic work uniform
• C. Standard work clothing with APR or PAPR respirator
• D. Splash-protective suit with SCBA

Answer: (C)

Level C protection is designed for situations where the type of airborne contaminants is known and has been measured, allowing for the use of a chemical-resistant suit that does not need to be fully encapsulating. This level of protection typically comprises standard work clothing combined with either an air-purifying respirator (APR) or a powered air-purifying respirator (PAPR). The choice of an APR or PAPR allows for the filtration of specific contaminants, which is sufficient when the risks are adequately understood and the chemical exposure is not immediate or life-threatening.

This suit offers a reasonable balance between worker mobility, comfort, and the necessary protection against airborne hazards. In contrast, other levels of protection mentioned, such as a fully encapsulating suit or those that necessitate SCBA, are reserved for scenarios where the risks from vapors or gases are unknown or highly hazardous, hence requiring a more secure and breathable environment within the suit. This context underscores why Level C is appropriate in situations where an understanding of chemical exposure exists, and effective filtration can be ensured without the extreme measures dictated by higher levels of protection.