non-rebreather

See also: nonrebreather

English

Etymology

non- +‎ rebreather

Noun

non-rebreather (plural non-rebreathers)

1. (medicine) A breathing mask that does not recycle expelled air, thus giving the wearer a fresh supply of air, pure oxygen, etc. with each breath.

See also

• rebreather, a somewhat similar apparatus for scuba diving, etc., designed to recycle expelled air by removing carbon dioxide and other gases.