In dealing with biological hazards, what is the minimum required PPE ensemble level?

• A. Level C ensemble
• B. Level A ensemble
• C. Level B ensemble
• D. Level D ensemble

Answer: (A)

The basic idea is that protective ensembles are chosen based on how the hazard could affect you and how you can be protected. When dealing with biological hazards, you need protection for inhalation of airborne pathogens and for skin/contact exposure, but you don’t always need the most extreme protection. Level C provides that balance: you wear protective clothing plus an air-purifying respirator or powered air-purifying respirator to guard against airborne contaminants, along with gloves and eye/face protection. Level D offers no respiratory or chemical protection and is not adequate for bio threats. Higher levels (B or A) add more protection, such as a fully encapsulating suit with a self-contained breathing apparatus, and are reserved for situations with splash/immersion risks or unknown, highly dangerous hazards. So, the minimum ensemble for a known biological hazard with airborne risk is Level C.