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SEL Number: 01AR-07-FTST
Title: Tester, Mask Leak/Fit


Last Updated: 7/8/2022 12:28:21 PM

Previous SEL Number: 01AR-07-FTST

Description: A device used for performing fit testing of respirator facepieces to determine quality of face to mask seal.

ImportantFeatures: Fit testing equipment for respirator masks may be either qualitative or quantitative. Qualitative equipment involves the use of a test agent, with the wearer determining whether the substance can be detected once the respirator is donned. Quantitative fit testing devices can use one of two methodologies: the negative pressure device measures the infiltration of air into a facepiece; particulate or ambient aerosol devices use the measurement of particulate or ambient aerosol leakage inside the wearer's breathing zone for determining the protection factor provided by the specific mask on the individual being tested. A protection factor is the ratio of contaminant concentration in the outside environment to contaminant concentration in the breathing zone.

Operating Considerations: The selected mask leak/fit tester should accommodate the types of respirator facemasks used. The tester should be used by a trained individual.

Fit testing should be in accordance with OSHA Title 29 Code of Federal Regulations Part 1910.134.

Training Requirements: Core Training: OSHA 1910.134, NFPA
National Fire Protection Association
1404, Manufacturer Certification may be required.
Initial Training: Moderate (1-2 days)
Sustainment Training: Extensive (>2 days)

Mandatory Standards:

Applicable Standards and References:


MSSL:
  • Responder Safety: Infectious Diseases
  • HazMat: Response Team
  • Forensic Technician
  • Law Enforcement: SWAT/Tactical Team
  • Medical Point of Dispensing
  • Mortuary Operations
  • REL: Full Canadian Recommended Equipment List
  • REL: LOS-1, Multi-Agency Intervention
  • REL: LOS-2, Scout/Reconnaissance Mission
  • REL: LOS-3, Suspicious Powder Response
  • REL: LOS-4, Evac and Perimeter Control
  • REL: LOS-5, Emergency Washdown