The main substances of air freshener are:
1. Deodorant, deodorant. In addition to the propellant and compressed gas, the air in the airtight tank is usually fresh material containing sulfur compounds, ammonia, amines, formaldehyde chemical reactions, such as ferrous sulfate.
2. Fresh agent, fragrance agent. Many alcohols, peppermint oil, flavors and other substances. Spraying the air freshener above, can be in addition to taste, deodorant, plus a lot of alcohol, peppermint oil, flavors and other substances, but also to enhance the people's sense of fresh air.