Nitrous oxide is a colourless gas. It has 2 nitrogen atoms & 1 oxygen atom shortened as N2O. Nitrous oxide is typically used for sedation and pain relief by medical professionals and dentists. It has also been misused by people for recreational purposes.
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 detached & helps burn the cars ordinary fuel and release more power.
The nitrous oxide sold here is for culinary purposes. It is utilised as a foaming agent in food and drink, whipping cream, making mousses, infusing flavours into alcohol & lots of other culinary applications.