42 C.F.R. § 84.1131 Respirators; required components.
Title 42 - Public Health
(a) Each respirator described in §84.1130 shall, where its design requires, contain the following component parts: (1) Facepiece, mouthpiece with noseclip, hood, or helmet; (2) Filter unit, canister with filter, or cartridge with filter; (3) Harness; (4) Attached blower; and (5) Breathing tube. (b) The components of each respirator shall meet the minimum construction requirements set forth in Subpart G of this part.
Title 42: Public Health
PART 84—APPROVAL OF RESPIRATORY PROTECTIVE DEVICES
Subpart KK—Dust, Fume, and Mist; Pesticide; Paint Spray; Powered Air-Purifying High Efficiency Respirators and Combination Gas Masks
§ 84.1131 Respirators; required components.