Nitrous oxide is a colourless gas. It has dual nitrogen atoms & a single oxygen atom denoted as N2O. Nitrous oxide is typically used for sedation & pain relief by medical doctors and 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 broken off and helps combust the cars normal petrol and release more power.
The nitrous oxide sold on this site is for cooking uses. It is used as a foaming agent in food and drink, whipping cream, making mousses, infusing flavours into alcohol and many other foodcooking applications.