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SEL Number: 01AR-03-PAPA
Title: Respirator, Powered, Air-Purifying (PAPR), CBRN


Last Updated: 3/18/2024 8:56:57 AM

Previous SEL Number: 01AR-03-PAPA

Description: CBRN
Chemical, Biological, Radiological, Nuclear
Powered Air-Purifying Respirator (PAPR) (certified by NIOSH
National Institute for Occupational Safety and Health
as compliant with CBRN
Chemical, Biological, Radiological, Nuclear
approval criteria). Worn with multiple ensemble configurations.

ImportantFeatures: Powered air-purifying respirators (PAPRs) use a blower in combination with either a loose-fitting respirator inlet cover (such as a hood or helmet) or a tight-fitting facepiece. PAPRs may use different hood, helmet, and facepiece designs. Generally, the blower is belt mounted, but other mounting options are available. The PAPR may use single or multiple canisters or cartridges, and requires a power source.

CBRN
Chemical, Biological, Radiological, Nuclear
PAPRs with loose-fitting facepieces require cartridges approved under NIOSH
National Institute for Occupational Safety and Health
Schedule 23 (Chemical Cartridge Respirators). CBRN
Chemical, Biological, Radiological, Nuclear
PAPRs with tight-fitting facepieces require canisters approved under NIOSH
National Institute for Occupational Safety and Health
Schedule 14G (Gas Masks).

Operating Considerations: Worn in conjunction with Incident Commander guidance and NFPA-certified ensemble appropriate for threat.

Powered air-purifying respirators (PAPR) cannot be used in environments classified as immediately dangerous to life or health (IDLH) and further, cannot be used when the oxygen concentration in the environment is less than 19.5%. Also, PAPRs with loose fitting inlet covering cannot be used for escape from an IDLH environment.

PAPRs must be fitted with the appropriate canister or cartridges, and should not be used in a flammable or potentially flammable environment. The length of canister or cartridge use time will depend on concentration of the hazardous substance, the temperature, relative humidity, and breathing (flow) rate through the canister or cartridge. Air-purifying respirator use is predicated on environmental monitoring in order to determine continued protection in accordance with OSHA 29 CFR
Code of Federal Regulations
Part 1910.134.

Consider power requirements in addition to protections. Based upon mission requirements, a low battery indicator is strongly recommended. Follow manufacturer's instructions regarding battery type and use.

Tight-fitting facepiece PAPRs must be fit-tested in a negative pressure mode in accordance with 29 CFR
Code of Federal Regulations
1910.134. PAPRs with loose-fitting inlet covers do not require fit-testing.

Training Requirements: Core Training: NFPA
National Fire Protection Association
470, Chapter 6, 8, 10 as applicable, OSHA 1910.120, OSHA 1910.134, NFPA
National Fire Protection Association
1404.
Initial Training: Extensive (>2 days)
Sustainment Training: Extensive (>2 days)

Mandatory Standards:


Applicable Standards and References:


MSSL:
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