# non-rebreather

> English word · Noun

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

## Etymology
From non- + rebreather.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/non-rebreather