The air source of the air-conditioning system can be divided into two categories, one is the hot air flow drawn from the aircraft system, which enters the cabin under the action of the air-conditioning components.
As a closed indoor space, the cabin body also has its own "air conditioner", but in the industry this system is called "environmental control system", or environmental control system for short.
Get the most out of your compressor. Without accessories, you simply cannot use your compressor. Trying to inflate the tires without fittings is a moot point. Accessories are necessary to connect all parts of the compressor. They direct air into the hose so that the required pressure is obtained.