Most people still think that it is better to open the window for ventilation, and have a fixed mindset of not opening the window for a day. Regardless of whether the outdoor air is clean or not, when in the hot summer and cold winter, it seems more difficult to open windows to achieve indoor ventilation. The use of indoor refrigeration equipment in summer and heating equipment in winter are both It limits the idea of opening windows to ventilate, and when outdoor air pollution is serious, opening windows for ventilation will make indoor air quality worse and worse.

        Especially in winter, when the cold air strikes, many parents are afraid that their children will be frozen. They often close their doors and windows. They do not know that the indoor air is not circulated for a long time. There are more and more harmful gases in the pollutants, but it causes nasal congestion, dizziness, allergic rhinitis, colds, coughs and other symptoms in children. Windows can be opened for ventilation. Both worry about the quality of outdoor air and cold air entering. In fact, as long as a fresh air system is installed in the house, these problems can all be solved. The fresh air system can filter the outdoor air before sending it into the room and pass it at the same time. The heat exchange function makes the cold air entering the room reach the same temperature as the room, greatly reducing indoor energy consumption, and forming an energy-saving and power-saving effect. Not only that, the fresh air system can effectively disinfect, sterilize, and increase the indoor air environment. Oxygen makes the indoor air clean and healthy, making your home environment more comfortable, and taking one breath at a time is healthier.