>What is next, bottled air?
Where you been?
http://en.wikipedia.org/wiki/Oxygen_bar
The oxygen bar is a trend that started in the late 1990s in Japan, and quickly spread east to California and Las Vegas. Used for health and recreation as well, O2 bars can now be found in many venues such as nightclubs, salons, spas, healthclubs, resorts, tanning salons, restaurants, coffee houses, bars, airports, ski chalets, yoga studios, chiropractors, and casinos. They can be found at trade shows, conventions and corporate meetings, as well as at private parties and promotional events. Oxygen Bar guests will normally pay $1.00 USD per minute to inhale an increased percentage of oxygen compared to the normal atmospheric content of 21% oxygen. This oxygen is produced from the ambient air by an industrial (non-medical) oxygen concentrator and inhaled through a nasal cannula or headset for a period of 5 to 10 minutes - or even longer.