What is the difference between liquified gas and compressed gas?
Aerosol products can be classified into two categories depending on the physical characteristics of gas used as the propellant. In liquefied gas type products, compressed and liquefied gas is used as the propellant, and in compressed gas type products, compressed and high pressure gas is used as the propellant. Liquefied gas includes LPG and DME, and compressed gas includes nitrogen gas and carbon dioxide. As carbon dioxide has the characteristic to dissolve in liquid contents, using carbon dioxide gas as a propellant shows a characteristic similar to that of liquefied gas.
