Nitrous oxide is a colourless gas. It has two nitrogen atoms & one oxygen atom written as N2O. Nitrous oxide is typically used for anesthesia & pain relief by medical professionals & 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 combust the cars ordinary petrol and release more power.
The nitrous oxide sold on this site is for culinary uses. It is used as a foaming agent in food and drink, whipping cream, making mousses, infusing flavours into alcohol & lots of other foodcooking applications.