Nitrous oxide is a colourless gas. It has two nitrogen atoms and 1 oxygen atom denoted as N2O. Nitrous oxide is usually used for anesthesia & pain relief by medical doctors 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 cooler temperatures. However, when super heated the oxygen is detached & helps combust the cars usual fuel and release more power.
The nitrous oxide sold here is for culinary uses. It can be used as a foaming agent in food & drink, whipping cream, making mousses, infusing flavours into alcohol & many other foodcooking uses.