In order to meets the requirements of human or other organisms for comfort is generally called comfort air conditioning; which is mainly used to meet the operational requirements of the process and equipment, as well as the comfort requirements of the human body. Generally called process air conditioning. The latter is usually used in clean room factories.
Clean room air conditioning is a kind of air conditioning engineering, it not only has certain requirements for the temperature, humidity and wind speed of indoor air, but also has higher requirements for the number of dust particles and the concentration of bacteria in the air. Therefore, the corresponding technology is called air purification clean technology. A better sealed space for controlling air temperature, humidity, cleanliness class standard, pressure, noise and other parameters is called a clean room.
A compare with a general air conditioner with a clean room air conditioner:
| Item | General air conditioner | Air conditioner for a clean room project |
| Operational principle | Full mixing of air supply and indoor air to achieve uniform indoor temperature and humidity | The turbulent flow is the dilution principle, the laminar flow is the piston principle, the clean room air is sent to the working area first, and the clean room work area is shrouded |
| Objective | For the purpose of controlling temperature, humidity, wind speed and air composition | In addition to the general purpose of air conditioning, it is more important to control the concentration of particles |
| Method | Primary and medium effect filtration, heating wet exchange | In addition to air-conditioning means to add HEPA, ultra HEPA, microbe sterilization measures |
