NRR 33 dB does not mean 33 dB at your ear
OSHA derating math for muffs and plugs — the formula that tells you what you are really getting in the field.
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Safety Resources
Plain-English guides on inspecting your PPE, judging cert claims, and reading what the spec sheet leaves out.
How to tell a real ANSI A5 glove from one just labeled A5
Three documents a real manufacturer can hand you on request — and the red flags on imported listings.
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Are your 1000V insulating gloves still safe today?
A 60-second visual and electrical check anyone on your crew can run before each shift — no third-party lab needed.
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