Nitrous oxide is a colourless gas. It has dual nitrogen atoms & one oxygen atom denoted as N2O. Nitrous oxide is typically used for anesthesia & pain relief by medical doctors and dentists. 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 broken off & helps burn the cars normal fuel and release more energy.
The nitrous oxide for sale here is for culinary purposes. It can be used as a foaming agent in food and drink, whipping cream, making mousses, infusing flavours into alcohol & many other foodcooking applications.