1, providing fresh air. 365 days a year, 24 hours a day to provide fresh air indoors, you can enjoy the fresh air of nature without opening the window to meet the health needs of the human body.

2. Drive away harmful gases. Effectively discharge all kinds of unhealthy or harmful gases, such as oil fume odor, CO2, cigarette odor, bacteria, viruses, etc. To prevent children, lovers and the elderly at home from being deeply harmed by second-hand smoke.

3, mildew and odor removal. Venting indoor damp and dirty air, eliminating peculiar smell, preventing the growth of mold and bacteria, is conducive to prolonging the service life of buildings and furniture.

4. Reduce noise pollution. You don't have to endure the interruption caused by opening the window, which makes the room more quiet and comfortable.

5, dustproof. Avoid a lot of dust caused by opening the window, effectively filter the outdoor air and ensure that the air entering the room is clean.

6, safe and convenient. Avoid property and personal safety hazards caused by opening windows. Even if no one is at home, you can automatically take a breath of fresh air.

Advantages and disadvantages of domestic fresh air system-disadvantages of fresh air system

1, indoor cooling (heating) loss. The fresh air system cleans the indoor air conditioner through continuous exhaust and air supply. Using air conditioning at the same time in summer will cause a certain loss of indoor air conditioning, as well as in winter. The total heat exchanger (a fresh air system) can reduce the indoor energy loss and save energy.

2. There is a certain amount of investment in the early stage. The price of purchasing fresh air system is related to many factors. Low price, poor performance, high energy consumption and insufficient comfort. A better intelligent fresh air system has a large initial investment, and of course, the cost recovery of this fresh air system is also fast in the later stage.

3. The filter needs to be replaced regularly. If the fresh air system does not clean the filter in time, it is likely to become an indoor pollution source, so it is necessary to replace the filter and movement of the fresh air system or fresh air device frequently. It can be replaced every 2-3 months. When the air quality is bad, it is recommended to change it once a month.

I hope Zhong Yiju's answer can help you.