Nitrous oxide is a colourless gas. It has dual nitrogen atoms & one oxygen atom denoted as N2O. Nitrous oxide is usually used for sedation & pain relief by medical doctors & dental professionals. It has also been misused by people for recreational reasons.
Another use for nitrous oxide gas is as a fuel booster in cars. Nitrous oxide is not flammable at cooler temperatures. However, when super heated the oxygen is detached and helps burn the cars normal fuel and release more energy.
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 many other foodcooking uses.