Medical gases are gases that are used indirectly or directly in the medical industry. Medical gases are also used as coolant and disinfectant directly in patients or medical procedures.

The global medical gas can be divided into pure medical gas and mixed medical gas. There are 6 kinds of medical pure gases, namely medical air, carbon dioxide, oxygen, nitrogen, nitrous oxide and helium. There are mainly 10 kinds of medical mixed gases, namely: carbon dioxide-oxygen mixture, nitrous oxide-oxygen mixture, ethylene oxide, ethylene oxide and HCFC-124 mixture, helium oxygen mixture, oxygen mixture, oxygen free mixture, blood gas mixture, laser gas mixture, lung gas mixture.

The global medical gas and equipment market is projected to expand at a cAGR of 8 percent from 2012 to 2018, and gas suppliers can enjoy a promising continued growth outlook. A recent report by TRANSPARENCY Market Research (TMR), a US market research consultancy, suggests that market expectations will rise to $9 billion in 2018, up more than 40% from $5.3 billion in 2011, and to $5.3 billion by 2020.

The Asian market for medical gases and equipment is attracting more attention because it is growing faster than any other region. "It's likely to fit perfectly with an extraordinary growth rate of 9.2 percent cAGR from 2012 to 2018." According to TMR. There is a very good market for medical gases and equipment in countries like China and India that have a larger population and a higher incidence of lung diseases.