Please note the following points:
1. Room area, floor height and humidity.
2. Pay attention to the wall structure and air tightness of the room.
3. The humidity range you need. In rainy season, too high humidity is harmful to human body, so it is necessary to use dehumidifier to make the air humidity reach the range needed by human body.
At the same time, if there are smokers at home, or if the house is renovated soon, the air will be unhealthy, and you can choose an air purifier.
1. According to the climatic conditions in the use area, the common climates are as follows: (1) High temperature and humidity in summer-sultry weather; (2) High temperature and low humidity-dry and hot season in northern China; (3) Low temperature and high humidity-rainy season in the south; (4) Low temperature and humidity-usually refers to the cold weather in the north. The climates that usually need dehumidification are (1) and (3). For areas with high temperature and humidity, it is suggested to use air conditioning to reduce the temperature during dehumidification through refrigeration mode. For areas with low temperature and high humidity, it is recommended to use an air conditioner or dehumidifier with independent dehumidification mode.
2. According to the usage, it should be economical to choose air conditioner to dehumidify the living environment. Because the most suitable air humidity is 60~70%, this humidity is relatively easy to achieve for air conditioning. The noise of dehumidifier is bigger than that of air conditioner, especially the high-power dehumidifier, so air conditioner is the first choice for human habitation dehumidification. 3. According to the users, it is obviously necessary to use a special dehumidifier for items that need strict humidity control in industrial products, such as optical lenses, magnetic recording materials (including optical disks), image films, electronic information media, electronic components, instruments, meters, powder materials, paper, wood, silk, leather, tobacco, food, tea and grain. And it is recommended to use dehumidifier for dehumidification.