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 accreditation criteria encompass the requirements of international standards ISO 17025.

		GloPlugz® earplugs have been independently tested to a noise reduction rating of 31

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		SoundOut II earmuffs have been independently tested to a noise reduction rating of 29

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		Twisters earplugs have been independently tested to a Noise Reduction Rating of 25.
		SoundDecision earmuffs have been independently tested to a Noise Reduction Rating of 25.