Nitrous oxide is a colourless gas. It has dual nitrogen atoms & 1 oxygen atom denoted as N2O. Nitrous oxide is usually used for sedation and pain relief by medical doctors and 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 cooler temperatures. However, when super heated the oxygen is detached and helps burn the cars usual petrol and release more power.
The nitrous oxide sold here is for culinary purposes. It can be used as a foaming agent in food and drink, whipping cream, making mousses, infusing flavours into alcohol and lots of other culinary uses.