User:Kthra/sandbox
From Wikipedia, the free encyclopedia
Earmuffs are objects designed to cover a person's ears for hearing protection or for warmth. They consist of a thermoplastic or metal head-band, that fits over the top or back of the head, and a cushion or cup at each end, to cover the external ears. This article primarily focuses on the earmuffs for hearing protection. The difference between passive and active earmuffs is discussed, as well as a brief history of earmuffs. Finally, principles of hearing protection are introduced and the effectiveness of earmuffs for protecting against noise-induced hearing loss is discussed.
- This article is about earmuffs that covers a person's ear. “Earmuffs” may also refer to the “earmuff convention” in Common Lisp.