Nitrous oxide is a colourless gas. It has 2 nitrogen atoms and 1 oxygen atom shortened as N2O. Nitrous oxide is typically used for anesthesia & 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 fuel booster in cars. Nitrous oxide is not flammable at cooler temperatures. However, when super heated the oxygen is broken off and helps combust the cars ordinary fuel and release more power.
The nitrous oxide sold on this site is for culinary purposes. It is used as a foaming agent in food & drink, whipping cream, making mousses, infusing flavours into alcohol & lots of other foodcooking applications.