Chemical vapor protective clothing should be used when ______ are suspected.

• A. Biological agents
• B. Extremely hazardous substances, corrosives, or splash hazards
• C. Minor leaks with water-based solutions
• D. Only dry powders

Answer: (B)

Chemical vapor protective clothing is used whenever exposure to hazardous chemical vapors, gases, or liquids that could splash is suspected. This type of clothing provides a barrier against vapors and corrosive splashes, helping prevent inhalation and skin or eye contact in situations involving extremely hazardous substances or splash hazards. It isn’t the right choice for biological threats, which require protections focused on preventing biological contamination rather than chemical vapors. Minor leaks with water-based solutions don’t typically produce dangerous vapors, so the protection would be unnecessary there, and protective gear focused on particulates or other hazards would be more appropriate for dry powders.