Nitrous oxide is a colourless gas. It has dual nitrogen atoms and a single oxygen atom shortened as N2O. Nitrous oxide is usually used for anesthesia and 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 release and helps combust the cars ordinary petrol and release more power.
The nitrous oxide available here is for cooking purposes. It is utilised as a foaming agent in food & drink, whipping cream, making mousses, infusing flavours into alcohol and many other culinary applications.