Which fit test should be performed?
Please answer the following questions.
- Is exposure greater than or equal to 10 times the permissible exposure limit (PEL)?
- Is the respirator for use in immediately dangerous to life or health (IDLH) environments (e.g., fires)?
- Is the respirator for exposures at unknown levels?
- Is fit testing for a fit factor of at least 500?
A QNFT is required if the answer is “YES” to ANY of the questions above.
A QLFT may be performed if the answer is “NO” to ALL four questions (even if the employee wears a tight-fitting, full-face mask).
Other factors employers should consider include (but are not limited to):
- Permitted if the respirator normally uses a powered/forced air supply and the powered/forced air is
removed (i.e., the opening where the forced air connects to the mask is covered, normally with a filter)
- Permitted to fit test negative-pressure, air-purifying respirators that must achieve a fit factor of 100
- Required if assigned protection factor (APF) must be greater than 100
- Required to test a full-face mask for a fit factor of 500 or more
Concentra follows fit testing guidelines established by the Occupational Safety and Health Administration (OSHA) Respiratory Protection Standard 1910.134.
Concentra recommends that employers follow the Small Entity Compliance Guide for the Respiratory Protection Standard to maintain OSHA compliance.