Double hearing protection comprises two devices. Which combination is correct?

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Multiple Choice

Double hearing protection comprises two devices. Which combination is correct?

Explanation:
Double hearing protection works by using two devices that seal the ear in different ways to cut noise from multiple paths. Earplugs block the ear canal, while earmuffs seal over the outer ear. When worn together, they provide greater attenuation than either one alone because they reduce sound leakage at both entry points. Earphones, on the other hand, are for listening and don’t add protective attenuation; they can even interfere with a good seal. Therefore, the correct combination is earplugs and earmuffs.

Double hearing protection works by using two devices that seal the ear in different ways to cut noise from multiple paths. Earplugs block the ear canal, while earmuffs seal over the outer ear. When worn together, they provide greater attenuation than either one alone because they reduce sound leakage at both entry points. Earphones, on the other hand, are for listening and don’t add protective attenuation; they can even interfere with a good seal. Therefore, the correct combination is earplugs and earmuffs.

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