Nitrous oxide is a colourless gas. It has two nitrogen atoms & one oxygen atom written as N2O. Nitrous oxide is typically used for anesthesia and pain relief by medical professionals and dental professionals. 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 lowwer temperatures. However, when super heated the oxygen is detached and helps burn the cars ordinary petrol and release more power.
The nitrous oxide available here is for food and drink purposes. It is utilised as a foaming agent in food and drink, whipping cream, making mousses, infusing flavours into alcohol & many other culinary applications.