Nitrous oxide is a colourless gas. It has two nitrogen atoms & 1 oxygen atom denoted as N2O. Nitrous oxide is typically used for anesthesia and pain relief by medical doctors and dentists. It has also been misused by people for recreational purposes.
Another use for nitrous oxide gas is as a petrol booster in cars. Nitrous oxide is not flammable at cooler temperatures. However, when super heated the oxygen is broken off & helps combust the cars ordinary petrol and release more power.
The nitrous oxide sold on this site is for food and drink purposes. It is used as a foaming agent in food & drink, whipping cream, making mousses, infusing flavours into alcohol & many other culinary applications.