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How to Put In Earplugs
Worn properly an earplug like the
Howard Leight Max NRR 33 can be used in noise up to 110 dB(A). 110 dB is roughly equivalent to someone blowing a whistle a couple feet from your ear. Aside from being extremely irritating, it’s very dangerous for your ear. 120dB is typically recognized as the pain threshold and the point where damage to your ear can happen very quickly.
On their website, the Howard Leight company writes that the best earplug is the one that is worn
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Jan 11th 2012