Nitrous oxide is a colourless gas. It has two nitrogen atoms & a single oxygen atom shortened as N2O. Nitrous oxide is typically used for sedation and pain relief by medical professionals & dental professionals. It has also been misused by people for recreational purposes.
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 release and helps burn the cars ordinary fuel and release more energy.
The nitrous oxide for sale here is for culinary purposes. It is used as a foaming agent in food and drink, whipping cream, making mousses, infusing flavours into alcohol & many other culinary applications.