Despite the cold weather in winter, why should the classroom be ventilated in time?

Usually, the release cycle of formaldehyde is 15 years. For example, when the weather is cold in winter, we won't open the window for ventilation. This makes the ventilation effect very poor, so when ventilating at this time, it should be used together with other things coated with formaldehyde, such as air purifiers and green plants, so that the effect can be good.

5. Always ventilate and open more windows. Autumn is a good season to eliminate mites, and all kinds of bacteria are waiting for opportunities in rainy weather. Frequent ventilation and more windows are tips to reduce illness and allergies.

However, it is still in the heating season, the weather is cold, and smog strikes from time to time, which is not suitable for window ventilation. However, if there is a fresh air system at home, ventilation can still be achieved without opening the window to ensure indoor health.

Air flow)/outdoor natural wind (outdoor natural wind causes local air pressure difference between indoor and outdoor). Gas flow) and temperature (when the temperature is high, gas molecules are active. As we all know, there are many problems in traditional window ventilation, such as rain and snow, strong wind, cold climate, no one indoors, sleep and so on. Install screens to prevent insects, strokes and thieves. It is not safe to open windows in high-rise buildings. Curtain wall decoration and window opening destroy the overall effect, and the ventilator solves these disadvantages and plays a very good role in energy saving. This is a great product. As for the roof ventilator. Some friends are called natural ventilators and roof natural ventilators, but they can all be collectively called ventilators. So what is the function of ventilator?

I asked an old classmate who is an environmental engineer, only to know that besides formaldehyde, the durability of window opening and the effectiveness of ventilation all affect the effect of window opening and ventilation. For example, if you sleep at night, or the weather is bad or you can't open the window in winter, then opening the window will lose its effect and formaldehyde will rebound twice.