Nitrous oxide is a colourless gas. It has 2 nitrogen atoms & one oxygen atom denoted as N2O. Nitrous oxide is usually used for anesthesia and pain relief by medical professionals & dentists. 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 low temperatures. However, when super heated the oxygen is release and helps burn the cars ordinary petrol and release more energy.
The nitrous oxide sold here is for cooking uses. It is utilised as a foaming agent in food & drink, whipping cream, making mousses, infusing flavours into alcohol & lots of other foodcooking applications.