Nitrous oxide is a colourless gas. It has 2 nitrogen atoms and one oxygen atom written as N2O. Nitrous oxide is usually used for sedation & pain relief by medical professionals & dentists. 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 cooler temperatures. However, when super heated the oxygen is detached & helps burn the cars normal fuel and release more power.
The nitrous oxide available here is for cooking purposes. It can be utilised as a foaming agent in food & drink, whipping cream, making mousses, infusing flavours into alcohol & lots of other culinary uses.