What type of shower is typically used to rapidly decontaminate large crowds?

• A. Low pressure high volume shower
• B. High pressure low volume shower
• C. Steam jet high-velocity shower
• D. Cold spray shower

Answer: (A)

For rapidly decontaminating large crowds, a low-pressure, high-volume shower is used. The idea is to flood people with a large amount of water quickly, washing away contaminants from clothing and skin and handling a high throughput of individuals. Low pressure reduces the risk of injury and aerosolizing contaminants, while high volume ensures many people can be processed in a short time.

Other options don’t fit mass decon: high-pressure, low-volume showers focus water on small areas and aren’t efficient for big groups; steam jet high-velocity showers can aerosolize materials and cause heat stress; cold spray showers don’t provide effective cleaning.