1. The computer room air conditioner has the function of constant temperature and humidity; while ordinary air conditioners can only control cooling or heating, but cannot control humidity.

2. The air conditioner in the computer room can automatically adjust the temperature and humidity; while the ordinary control can only control the temperature, and the temperature cannot be automatically adjusted.

3. The accuracy of the temperature and humidity controlled by the air conditioner in the computer room is very high, the temperature can be accurate to ±1°C, and the humidity can be accurate to ±5%; while the temperature control accuracy of ordinary air conditioners is only ±3°C.

4. The cooling air ratio of the air conditioner in the computer room is relatively large, and the cooling air ratio is the ratio of the cooling capacity of the air conditioner to the air volume. The cold air ratio of ordinary air conditioners is about 3, while the cold air ratio of computer room air conditioners is about 5. The air conditioner in the computer room is designed with large air volume and small temperature difference to ensure that the indoor humidity will not rise sharply and cause high humidity while cooling down.