Nitrous oxide is a colourless gas. It has 2 nitrogen atoms & a single oxygen atom denoted as N2O. Nitrous oxide is typically used for sedation and pain relief by medical professionals and 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 low temperatures. However, when super heated the oxygen is release & helps combust the cars usual petrol and release more power.
The nitrous oxide sold here is for food and drink purposes. It is utilised as a foaming agent in food & drink, whipping cream, making mousses, infusing flavours into alcohol & lots of other foodcooking uses.