['Personal Protective Equipment', 'Training', 'Safety and Health Programs and Training']
['Respiratory Protection', 'Training', 'OSHA Outreach Training']
01/13/2025
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What is the NIOSH respirator certification standard all about?
In May of 1995, NIOSH took sole control of approval and certification responsibilities that it had shared with the Mining Safety and Health Administration. At that time, certification regulations under 30 CFR Part 11 were moved to 42 CFR Part 84 and the rules governing the certification of non-powered, air-purifying particulate-filter respirators, the most commonly used respirators, were revised. After July 1998, manufacturers could no longer produce non-powered air-purifying particulate respirators that met the Part 11 criteria.
Whenever your facility makes the transition, you must identify NIOSH-approved respirators that will protect workers from the air contaminants they will be exposed to on the job.
The NIOSH standard groups non-powered, air-purifying particulate-filter respirators according to the following filter series:
- R series, resistant to oil, single shift use only.
- P series, oil-proof, multiple shift use.
- N series, not resistant to oil.
These categories each have three levels of filter efficiency (95%, 99%, or 99.97%) depending on how much filter leakage can be accepted. Higher filter efficiency means lower filter leakage.
- If no oil particles are present in the work environment, use a filter of any series.
- If oil particles (from lubricants, cutting fluids, glycerine, etc) are present, use an R or P series filter.
- If oil particles are present and the filter is to be used for more than one work shift, use only a P series filter.
NIOSH intends to revise certification requirements in modules, or stages, for other respirator classes to incorporate technical advances made in the past 20 or so years.
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['Personal Protective Equipment', 'Training', 'Safety and Health Programs and Training']
['Respiratory Protection', 'Training', 'OSHA Outreach Training']
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Copyright 2025 J. J. Keller & Associate, Inc. For re-use options please contact copyright@jjkeller.com or call 800-558-5011.