Nitrous oxide is a colourless gas. It has two nitrogen atoms and a single oxygen atom denoted as N2O. Nitrous oxide is typically used for sedation & pain relief by medical professionals & 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 detached and helps combust the cars usual fuel and release more energy.
The nitrous oxide available here is for cooking uses. It is utilised as a foaming agent in food & drink, whipping cream, making mousses, infusing flavours into alcohol and many other culinary uses.