Nitrous oxide is a colourless gas. It has two nitrogen atoms and one oxygen atom denoted as N2O. Nitrous oxide is typically used for sedation & pain relief by medical professionals and 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 low temperatures. However, when super heated the oxygen is broken off and helps burn the cars usual fuel and release more power.
The nitrous oxide for sale here is for culinary uses. It can be used as a foaming agent in food & drink, whipping cream, making mousses, infusing flavours into alcohol and many other culinary uses.