How many times do you open the window for ventilation every day?
It is best to open the window for ventilation three times a day.
It's not better to open as many windows as possible every day for ventilation, and it's not advisable to open them for a long time at a time. It is recommended to open the window for 30 minutes three times a day in the morning, noon and evening. If the room is small, windy or cool outside, the window opening time should be shorter; When the room is large, windless or warm outside, the window opening time should be longer. Take an 80-square-meter house as an example. If the window is opened for about 20 minutes in the absence of wind or breeze, the pathogenic microorganisms can be reduced by 60%.
When do you open the window for ventilation every day?
The best window opening time is 9: 00 am-11:00 or 2:00-4:00 pm.
Because in these two periods, one is to avoid air quality and environmental pollution caused by automobile exhaust during peak hours; Second, the temperature rises at this time, and the harmful gases gathered at the bottom of the atmosphere have dispersed. Window ventilation can let fresh air into the room and achieve the effect of ventilation and health preservation.
However, it should be noted that friends who are allergic to pollen in spring are best not to open the window often for ventilation, and it is best to consider using air conditioning for ventilation.
Is it okay to open the window for ventilation 24 hours a day?
Not so good.
Although window ventilation is very beneficial to the body, if you open the window for 24 hours, first, the outdoor temperature is low, and it is easy to catch a cold when cold air enters at night; Second, when the weather changes, such as smog, strong wind and other adverse weather conditions, it is easy to make outdoor air pollute indoor air; Third, when the urban air is at the peak, automobile exhaust will reduce the air quality. At this time, opening the window for ventilation is harmful to the human body.
What are the advantages of window ventilation?
Frequent window ventilation has the following advantages:
1, window ventilation can effectively use sunlight and ultraviolet rays in the air to kill germs, remove harmful gases in indoor air and purify the air.
2, diligent ventilation can keep the quilt from being damp and avoid the breeding of mites and molds.
3, more ventilation and fresh air can improve the body's immunity and reduce respiratory diseases.
What are the hazards of not opening the window for ventilation?
If the room is not ventilated, there will be the following hazards:
1, indoor harmful gases increase, carbon dioxide content increases, harmful gases produced by smoking cannot be discharged in time, and indoor air is turbid.
2, indoor humidity is high, which is easy to make all kinds of furniture and food moldy and rotten.
3, don't open the window for ventilation, it will increase the bacteria and germs in the air, making people easy to get sick and get worse.