gas mask canister; respirator cartridge; chemical cartridge
Technical term for a replaceable filter unit used in gas masks and respirators to absorb toxic gases or particles.
The gas mask canister needs to be replaced regularly.
This chemical cartridge is for organic gases.
Compound of 吸収 (absorption) and 缶 (can, canister). The exact historical derivation is uncertain, but the term likely arose in industrial safety contexts.