Modeled after the "air stations" in polluted downtown Tokyo and Beijing, the first oxygen bar (the O2 Spa Bar) opened in Toronto, Canada, in 1996. The trend continued in North America and by the late 1990s, bars were in use in New York, California, Florida, Las Vegas and the Rocky Mountain region.
Comments
This made me think of this story from a while back.
https://mashable.com/2016/05/12/china-bottled-air-demand/
Curious I googled the company to see if they still existed. Vitality Air appears to be doing well.
https://vitalityair.com/
https://en.wikipedia.org/wiki/Oxygen_bar :
Anyone else SCUBA? I'd rather do a EAN36 for about the same price, but would last me longer.
https://en.wikipedia.org/wiki/Nitrox