Nitrous oxide is a colourless gas. It has two nitrogen atoms and a single oxygen atom shortened as N2O. Nitrous oxide is typically used for anesthesia and pain relief by medical doctors & 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 release and helps burn the cars ordinary petrol and release more power.
The nitrous oxide for sale here is for culinary uses. It is used as a foaming agent in food & drink, whipping cream, making mousses, infusing flavours into alcohol and lots of other foodcooking applications.