oxygen mask

1. 1.

   a breathing device that is placed over the mouth and nose; supplies oxygen from an attached storage tank

   Broaderbreathing device

   Part ofaqualung

Questions about oxygen mask

What does oxygen mask mean?

oxygen mask means "a breathing device that is placed over the mouth and nose; supplies oxygen from an attached storage tank".

Is oxygen mask a common word?

oxygen mask is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.