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SEL Number: 01AR-01-SCCC
Title: Respirator, Full-Facepiece, Closed-Circuit, Self-Contained (Re-Breather)


Last Updated: 7/8/2022 12:17:41 PM

Previous SEL Number: 01AR-01-SCCC

Description: Full-Facepiece Self-Contained Breathing Apparatus that recirculates the breathing air through the apparatus and purifies it, removing carbon dioxide and adding fresh oxygen. The wearer is supplied with air that has been oxygen enriched.

ImportantFeatures: The closed-circuit SCBA
Self Contained Breathing Apparatus
consists of a full facepiece, respirable breathing gas container, supply of respirable breathing gas, gas pressure or liquid level gauges, timer, remaining service life indicator or warning device, hand-operated valves, breathing bag, safety relief valve / system, and harness. Closed-circuit SCBA
Self Contained Breathing Apparatus
are typically rated for 4 hour usage time.

Operating Considerations: There are no current approvals for use of closed-circuit SCBA
Self Contained Breathing Apparatus
s inside fully-encapsulated suits per NFPA
National Fire Protection Association
1991.
Closed-circuit (CC) SCBA
Self Contained Breathing Apparatus
s are designed to protect personnel in hazardous, toxic, or oxygen-deficient environments. They are used by first responders (fire, police, EMS) and military personnel in a wide range of operations including HazMat remediation, mine and tunnel rescue, security operations, and special missions. The lighter weight and longer usage rating of the CC-SCBA
Self Contained Breathing Apparatus
are critical in missions such as mine rescue.

There is currently no CBRN
Chemical, Biological, Radiological, Nuclear
standard for this type of respirator. Until such a standard becomes available, purchasers are urged to carefully review test data collected by manufacturers.

A NIOSH
National Institute for Occupational Safety and Health
prohibition exists (see Federal Register Vol. 50, No. 222, pages 47456 – 47457 dated November 18, 1985), for entry into high radiant heat and open flame environments while wearing a pure oxygen, positive pressure CC-SCBA
Self Contained Breathing Apparatus
. While NIOSH-approved CC-SCBA
Self Contained Breathing Apparatus
s are required to have some high radiant heat and open flame resistance characteristics, these requirements are not sufficient to sanction use in high radiant heat and open flame environments unless NIOSH
National Institute for Occupational Safety and Health
repeals the prohibition. The only exceptions to this prohibition are obtained through additional optional 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:
  • Forensic Technician
  • Maritime
  • Law Enforcement: SWAT/Tactical Team
  • REL: Full Canadian Recommended Equipment List
  • REL: LOS-1, Multi-Agency Intervention
  • REL: LOS-2, Scout/Reconnaissance Mission