Nitrous oxide is a colourless gas. It has dual nitrogen atoms and one oxygen atom written 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 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 release and helps combust the cars usual petrol and release more energy.
The nitrous oxide sold here is for cooking purposes. It can be used as a foaming agent in food & drink, whipping cream, making mousses, infusing flavours into alcohol & many other culinary applications.