Medical Oxygen, Nitrous oxide, Carbon Dioxide, Nitrogen, Mix Gas, Helium, Acetylene, Hydrogen Medical Air plant is used to supply the hospital’s gas need from a source. The working principles of these power plants are almost the same. The only difference is the gases contained in the tubes used in the power plant. These compressed gases are used in operating rooms, intensive care units, in vitro fertilization centers, baby care units, emergency departments, patient rooms, laboratories and places where it is needed. Gases are stored under high pressure in tubes connected to the central power plant. The pressure of the gas varies according to the types of gas in the tubes. The power plant capacity varies according to the hospital’s medical gas usage needs.