Hearing Protection Product Testing
Hearing protection product testing
Michael & Associates
Gateway Safety Hearing Protection products are independently tested by Michael & Associates, a psychoacoustics laboratory accredited by the National Institute of Standards and Technology (NIST) National Voluntary Laboratory Accreditation Program (NVLAP) for tests performed according to ANSI S3.19-1974, ANSI S12.6-2008 and AS/NZ S1270:2002.
These products have been independently tested to the below Noise Reduction Ratings (NRRs) in an accredited NVLAP-certified facility according to ANSI S3.19-1974.

These products have been independently tested to a 33 NRR.

This product has been independently tested to a 31 NRR.

This product has been independently tested to a 30 NRR.

These products have been independently tested to a 29 NRR.




This product has been independently tested to a 28 NRR (cap-mount version).

These products have been independently tested to a 27 NRR. (Earmuffs in cap-mount versions)









These products have been independently tested to a 26 NRR. (Cap-mount version)

These products have been independently tested to a 25 NRR.





These products have been independently tested to a 24 NRR. (BlackHawk cap-mount version)

These products have been independently tested to a 25 NRR.

These products have been independently tested to a 22 NRR.