With the development of society, air pollution and haze continue to deepen, and people 

have higher and higher requirements for indoor air quality. The home fresh air system has

 also begun to be popularized in various families, but how to choose the right new fan 

and installation has made users unable to start.

Net Musen will come to talk with you about the home fresh air system, how to choose a 

suitable home fresh air system.

Home indoor air problems:

1, furniture, decoration materials release formaldehyde for up to 10 years;

2, outdoor air pollution is serious: haze, automobile exhaust, etc.;

3, open the window to cause indoor dust, mosquitoes, noise and other problems;

4, the smell of daily life;

Home fresh air system solutions:

1. According to the "Civil Building Design Code", the minimum fresh air volume is 30m3/h

 per capita;

2, the use of primary, intermediate, advanced filtration system, PM2.5 purification rate of 

more than 99%;

3, noise reduction technology, noise does not exceed 50 dB;

4, indoor and outdoor temperature difference is large, the fresh air system should use 

heat recovery technology;

Selection basis of fresh air system:

1, "Civil Building heating Ventilation and air conditioning design Code" GB50736-2012;

2, "Industrial Building heating Ventilation and air conditioning design Code" GB50019-

2015;

3, "Ventilation and air conditioning engineering construction quality acceptance Code" 

GB50243-2016;

4, "Public building energy saving design Standard" GB50189-2015.

To sum up, when we choose the fresh air system now, we should choose according to the

 housing area, space size, population density, air quality, installation environment and 

other factors, and the detailed standard can be referred to: "Residential fresh air system 

Technical standard JGJ/T440-2018".