(a) Each self-contained breathing apparatus described in § 84.70 shall, where its design requires, contain the following component parts:
- (1) Facepiece or mouthpiece, and noseclip;
- (2) Respirable breathing gas container;
- (3) Supply of respirable breathing gas;
- (4) Gas pressure or liquid level gages;
- (5) Timer;
- (6) Remaining service life indicator or warning device;
- (7) Hand-operated valves;
- (8) Breathing bag;
- (9) Safety relief valve or safety relief system; and
- (10) Harness.
- (b) The components of each self-contained breathing apparatus shall meet the minimum construction requirements set forth in subpart G of this part.