NIOSH Respirator Approval and Verification

An approval covers the respirator and components identified in its approval documentation. Facepieces, filters, cartridges, hoses and other components should not be interchanged solely because they physically connect. Model identification and the testing and certification number provide the starting point for verification. NIOSH publishes approval information so purchasers can compare the offered device with the listed configuration and identify unsupported approval claims.

Part 84 establishes approval procedures and requirements for different classes of respiratory protective devices. It addresses application information, testing, approval conditions and quality control. Filtration performance is one aspect of a particulate respirator's approval; other respirator types have different tests and operating characteristics. A report for filter material alone is not equivalent to approval of a complete respiratory protective device.

NIOSH describes required approval labeling and recommends checking the Certified Equipment List. Compare the approval number, manufacturer and model with the equipment supplied, including packaging and user instructions. The list is an official verification resource, not a substitute for checking the physical product and its supply chain. Inconsistent markings or an unmatched model require resolution before the product is represented or used as NIOSH approved.

A particulate filter does not provide the same protection as a cartridge selected for a gas or vapor. Selection also depends on concentration, oxygen conditions and the limits of the respirator class. OSHA's respiratory protection standard governs covered workplace programs, including hazard evaluation and the selection of appropriate certified equipment. Product approval therefore informs selection but does not determine the safe application without an exposure assessment.

Where the applicable workplace standard requires them, medical evaluation, fit testing, training and maintenance form part of the protection program. A successful approval test does not demonstrate fit on an individual wearer. Changes in facepiece model, size or conditions affecting fit require attention under the relevant program requirements. Follow the manufacturer's approved instructions for inspection, cleaning, replacement and component use rather than relying on informal modifications.

Retain the model-specific approval evidence and instructions with the purchasing specification. Confirm that substitute filters, replacement parts and supplier changes remain within the approved configuration. Monitor official approval information and relevant safety notices when managing stock. NIOSH approval is a defined federal determination about the device; it should not be extended to unrelated face coverings, a distributor's entire catalog or claims beyond the device's approved protection class.