an establishment where customers go to inhale oxygen-rich air through a disposable hose inserted into their nostrils, for the purpose of deriving supposed therapeutic effects.
Origin of oxygen bar
First recorded in 1985–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for oxygen bar
an establishment where customers pay to inhale pure oxygen in order to combat the effects of air pollution
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012