Nitrous oxide is a colourless gas. It has two nitrogen atoms & 1 oxygen atom written as N2O. Nitrous oxide is usually used for anesthesia and pain relief by medical doctors & dental professionals. It has also been misused by people for recreational reasons.
Another use for nitrous oxide gas is as a petrol booster in cars. Nitrous oxide is not flammable at low temperatures. However, when super heated the oxygen is broken off and helps combust the cars usual petrol and release more power.
The nitrous oxide available here is for cooking purposes. It can be utilised as a foaming agent in food & drink, whipping cream, making mousses, infusing flavours into alcohol and many other foodcooking uses.