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2 votes

What's the point, if any, of having ear plugs that go beyond the ear canal?

Some interesting answers I got on Reddit: verdant_hippie: Better retention and fit, which can help with noise reduction ashleeh92: Mandibular movement can’t cause seals to break in canal styles. Have ...
Franck Dernoncourt's user avatar
1 vote

Why can't wearing both ear muffs (whether passive or active) and earplugs simultaneously yield more than 36 dB noise reduction ratio (NRR)?

As an additional data point, the 2010 study {1} observed an attenuation of 40 dB or better at all frequencies except 125 Hz when wearing both ear muffs and earplugs simultaneously: The measurements ...
Franck Dernoncourt's user avatar

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