42 C.F.R. § 84.251 – Required components.

(a) Each vinyl chloride respirator described in § 84.250 shall, where its design requires, contain the following component parts:
1. (1) Facepiece;
2. (2) Canister with end-of-service-life indicator;
3. (3) Cartridge with end-of-service-life indicator;
4. (4) Harness;
5. (5) Attached blower; and
6. (6) Breathing tube.
(b) The components of each vinyl chloride respirator shall meet the minimum construction requirements set forth in Subpart G of this part.