How long does it take to open the window for ventilation, and how long does it take to open the wind

15-30 minutes is appropriate.

There are a lot of bacteria and microorganisms living in the room, in the case of closed doors and windows, it is easy to provide a large number of germs and bacteria to breed and reproduce good conditions, coupled with the lack of air circulation, the oxygen concentration in the room will gradually decrease, which is easy to cause people to feel unwell, it is recommended to open the window regularly every day for ventilation, not less than 15-30 minutes at a time, if the window is just a small crack, the ventilation time should be increased to 30 minutes - 1 hour.

15-30 minutes is appropriate.

There are a lot of bacteria and microorganisms living in the room, in the case of closed doors and windows, it is easy to provide a large number of germs and bacteria to breed and reproduce good conditions, coupled with the lack of air circulation, the oxygen concentration in the room will gradually decrease, which is easy to cause people to feel unwell, it is recommended to open the window regularly every day for ventilation, not less than 15-30 minutes at a time, if the window is just a small crack, the ventilation time should be increased to 30 minutes - 1 hour.

-15 minutes, depending on the actual situation.

2. Generally speaking, the time of opening the window for ventilation needs to be judged according to the temperature difference between indoor and outdoor and the size of the room. If there is a difference of 20 degrees Celsius between indoor and outdoor temperatures.

In the case of about 9 minutes, a room of 80 cubic meters needs to be thoroughly ventilated for about 9 minutes; If the temperature difference is about 15 degrees Celsius, the ventilation time is about 11 minutes. If you can't grasp the temperature difference correctly, you can open the window for ventilation for 30 minutes.

15-30 minutes is appropriate.

There are a lot of bacteria and microorganisms living in the room, in the case of closed doors and windows, it is easy to provide a large number of germs and bacteria to breed and reproduce good conditions, coupled with the lack of air circulation, the oxygen concentration in the room will gradually decrease, which is easy to cause people to feel unwell, it is recommended to open the window regularly every day for ventilation, not less than 15-30 minutes at a time, if the window is just a small crack, the ventilation time should be increased to 30 minutes - 1 hour.

Open the windows for ventilation 3 times a day, about 30 minutes each time.

Depending on the size and temperature of the room, you can also decide how long to open the window for ventilation.

1. In the case of a 20 difference in indoor and outdoor temperature, it takes 9 minutes for a room of 80 cubic meters to be completely ventilated.

2. If the difference between indoor and outdoor temperature is 15, it takes 11 minutes to open the window.

3. If the temperature difference cannot be accurately grasped, it is enough to open the window for 30 minutes.

The correct way to open windows for ventilation:

Opening windows for ventilation keeps indoor air fresh, which in turn makes us healthier. It is generally recommended to open the window for ventilation 3 times a day, for no less than 15 minutes each time, which can basically maintain the freshness of the indoor air.

Also, the window opening time is 9:00 a.m. to 11:00 p.m. or 2:00 p.m

00 4:00 is preferred. Because during these two periods, the temperature has risen, the harmful gases that have accumulated in the bottom of the atmosphere have been dispersed, and the effect of opening windows for ventilation is better.

It is also a good choice to open the windows in the morning after waking up, when cooking, after bathing, after cleaning, and before going to bed.

15-30 minutes is advisable to disturb the clock.

There are a lot of bacteria and microorganisms living in the room, in the case of closed doors and windows, it is easy to provide a large number of germs and bacteria to breed and multiply good conditions, coupled with the lack of air circulation, the oxygen concentration in the room will gradually decrease, which can easily lead to physical discomfort, it is recommended to open the window regularly every day for ventilation, not less than 15-30 minutes at a time, if the window is only open a small crack, the ventilation time should be increased to 30 minutes - 1 hour.

15-30 minutes is advisable to disturb the clock.

There are a lot of bacteria and microorganisms living in the room, in the case of closed doors and windows, it is easy to provide a large number of germs and bacteria to breed and multiply good conditions, coupled with the lack of air circulation, the oxygen concentration in the room will gradually decrease, which can easily lead to physical discomfort, it is recommended to open the window regularly every day for ventilation, not less than 15-30 minutes at a time, if the window is only open a small crack, the ventilation time should be increased to 30 minutes - 1 hour.

1. Generally speaking, the time of opening the window for ventilation needs to be judged according to the temperature difference between indoor and outdoor and the size of the room. If the temperature difference between indoor and outdoor is about 20 degrees Celsius, a room of 80 cubic meters needs to be thoroughly ventilated for about 9 minutes.

2. If the temperature difference is about 15 degrees Celsius, the time required for ventilation is about 11 minutes. If you can't grasp the temperature difference correctly, you can open the window for ventilation for 30 minutes.

3. It should be noted that do not open the window for a long time, long-term window opening is not conducive to the maintenance of indoor furniture, ground, walls, etc., and it may cause some damage for a long time, so it is necessary to control the window opening time.

The effective time for opening the window for ventilation is 15-30 minutes.

It is best not to open the window for ventilation for less than 15-30 minutes a day, and it is best to open the window for ventilation every day, so as to help the circulation of indoor air, but it should also be noted that the window ventilation is best when the air condition is better, if it is a rainy day or a haze day, it is recommended not to ventilate.

Generally speaking, it is best to open the window for ventilation for less than 15 minutes, but this bottom line time will also change according to the size of the room and the speed of air circulation, but generally speaking, 30 minutes can completely circulate the indoor air, so the time for opening the window for ventilation should not be less than 15-30 minutes every day.

The best time to open windows for ventilation

The best time to open windows for ventilation is at 9-10 o'clock in the morning, and at 3-4 o'clock in the afternoon, because the temperature is in a state of elevation or high temperature in these two time periods, the countertroposphere phenomenon has disappeared, and the harmful gases deposited in the bottom layer of the atmosphere have been dispersed, so relatively speaking, the air in this time period is relatively fresh, and it is more suitable for opening windows for ventilation.

However, it should also be noted that 9-10 a.m. and 3-4 p.m. are only a time period, not a fixed time, so you need to make a decision according to the actual situation at that time.