The user chooses which alcoholic spirit will be used and the alcoholic spirit is loaded into a diffuser capsule in the machine. The oxygen bubbles are then passed through the capsule, absorbing the alcohol, before being inhaled through a tube. The resultant cloudy alcohol vapor is then inhaled from the end of the tube via a device that converts liquid to vapor.
Alcohol Without Liquid (AWOL) is a new machine that allows bar patrons to inhale liquor in a mist instead of drinking it. It takes about 20 minutes to inhale one vaporizer shot of alcohol. Most locations charge $10 plus the cost of a shot. It looks like an inverted bong.