The equipment shown in the illustration is a __________. Illustration SF-0012

Correct Answer: Option A — canister-type gas mask

Canister-type gas masks utilize a chemical filter to remove specific contaminants from the air. These are distinct from self-contained breathing apparatus (SCBA) or supplied-air respirators. They are limited to specific environments where oxygen levels are sufficient and the contaminant concentration is within the filter's rated capacity.