The fresh air system came many years ago by taking advantage of the "haze" wind, which has become more and more popular. Of course, some friends still do not understand it enough. In addition, there are mixed brands in the market, so it is easy to misunderstand the principle of the fresh air system. Here are some of the most incredible misunderstandings I've sorted out. Do you think so?
Myth 1: Fresh air system is not required when air quality is good
In addition to continuous ventilation, the fresh air system can not only bring fresh air to the room, but also realize the purpose of not opening windows to ensure good indoor ventilation in winter and keep away from outdoor noise.
In addition, the fresh air system with full heat exchanger can also ensure that when the indoor air conditioning or heating system is turned on, the temperature difference of air during indoor and outdoor ventilation can be reduced, so as to save energy and protect the environment. Even cities without haze may have potential indoor pollution. Indoor air pollution such as second-hand smoke, formaldehyde and CO2 can not be ignored.
Myth 2: the fresh air system is useless. It's better to open a window
When the outdoor air is fresh, opening windows for ventilation is indeed the best way, but the acceleration of urbanization has led to haze pollution and serious automobile exhaust emissions; When the air conditioner is turned on in summer, every family will also close all the windows. The room is always closed and lacks fresh air. The outdoor temperature is low in winter, so the ventilation frequency should not be too much to avoid the family catching cold;
There are always many conditions that limit the frequency of opening windows. The fresh air system can keep you open windows for 24 hours, and allow the indoor air to be filtered to maintain fresh air and high oxygen content.