In what situation would a Level B protective suit be appropriate?

A Level B protective suit is designed for situations where there is a need for skin protection from hazardous materials, while still allowing for respiratory protection through the use of an appropriate respirator. This level of protection is particularly necessary when the atmosphere is known to be non-toxic but poses a risk of skin contact with hazardous substances.

In this scenario, the individual would be exposed to potentially harmful chemicals that could cause skin absorption or burns, which necessitates the use of a suit that covers the body fully. The suit provides a barrier against chemical splashes, spills, or vapors that might harm the skin. Importantly, while Level B suits do not provide full respiratory protection, they are supplemented with respiratory equipment that can protect against known respiratory hazards in the environment.

This is distinct from situations where only air-purifying respirators are sufficient, which would not involve the need for a protective suit. Likewise, needing full respiratory protection would typically require a higher level suit, like Level A, and a low risk of contamination would not warrant the use of a protective suit at all. Finally, working with gas under pressure is often associated with higher risks and complexities that would likely require a different level of protection altogether.