1. When purchasing air conditioners, you should know how big your room is and how big your space is, so that you can choose the size of air conditioners.

2. If you use it in the bedroom, you can save space by choosing the hanging type. If the living room is relatively large, you can choose cabinet air conditioning.

3, choose a brand, choose what brand can make the final decision according to their own preferences and economic level, it is best to choose a well-known big brand, which is safer and more reliable.

4. Look at the energy efficiency ratio of air conditioners, which are usually attached to the surface of the machine. The higher the energy efficiency, the better the performance, the more energy-saving and energy-saving, and of course the higher the price.