Cannister definition?

Cannister definition?

• A. Cylinder-shaped respirator cartridge.
• B. Metal or plastic container filled with absorbent materials to filter fumes and vapors from the air.
• C. A loose foam pad.
• D. A valve cover.

Answer: (B)

In respirator terminology, a canister is the metal or plastic container that holds absorbent media used to remove fumes and vapors from the air before you breathe it. The media (like activated carbon) scrubs out hazardous gases so you’re not inhaling them. This is different from a cartridge, which is a separate form factor used in some respirators for different combinations of particles and gases. A loose foam pad or a valve cover isn’t the filtration media or a filtering container, so they don’t serve the same purpose.

In respirator terminology, a canister is the metal or plastic container that holds absorbent media used to remove fumes and vapors from the air before you breathe it. The media (like activated carbon) scrubs out hazardous gases so you’re not inhaling them. This is different from a cartridge, which is a separate form factor used in some respirators for different combinations of particles and gases. A loose foam pad or a valve cover isn’t the filtration media or a filtering container, so they don’t serve the same purpose.