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