Nitrous oxide is a colourless gas. It has 2 nitrogen atoms and a single oxygen atom shortened as N2O. Nitrous oxide is usually used for anesthesia and pain relief by medical doctors and dentists. It has also been misused by people for recreational reasons.
Another use for nitrous oxide gas is as a petrol booster in cars. Nitrous oxide is not flammable at low temperatures. However, when super heated the oxygen is release & helps burn the cars ordinary petrol and release more energy.
The nitrous oxide available on this site is for food & drink uses. It is used as a foaming agent in food & drink, whipping cream, making mousses, infusing flavours into alcohol and lots of other culinary applications.