Nitrous oxide is a colourless gas. It has two nitrogen atoms & one oxygen atom written as N2O. Nitrous oxide is usually used for anesthesia and pain relief by medical doctors and dental professionals. It has also been misused by people for recreational reasons.
Another use for nitrous oxide gas is as a fuel booster in cars. Nitrous oxide is not flammable at low temperatures. However, when super heated the oxygen is release & helps combust the cars ordinary fuel and release more power.
The nitrous oxide available here is for food & drink purposes. It is used as a foaming agent in food & drink, whipping cream, making mousses, infusing flavours into alcohol and many other foodcooking applications.