Nitrous oxide is a colourless gas. It has 2 nitrogen atoms & a single oxygen atom written as N2O. Nitrous oxide is typically used for sedation & 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 detached & helps combust the cars usual fuel and release more power.
The nitrous oxide for sale here is for culinary purposes. It is used as a foaming agent in food & drink, whipping cream, making mousses, infusing flavours into alcohol & many other foodcooking uses.