Is it better to sleep with the door closed or open?

Sleeping is something everyone has to do every day, but there are actually a lot of little knowledge about sleeping. In summer, the air is relatively hot and stuffy. In order to make the room cooler, many people keep doors and windows closed all day long, allowing the air-conditioned air to fill the entire room. But in order to breathe fresh air, some people want to open the door or window when they sleep. So is it better to open the door or window when you sleep?

5 healthy window opening times

1. After getting up early

After a whole night of breathing, the oxygen content in the bedroom air is low, and when making the bed, tiny pollutants such as dust mites and dandruff will float in the air.

Open the window around 8 am, when the temperature rises and the air quality is slightly better.

2. When cooking

The large amount of fumes produced by cooking methods such as frying, stir-frying, and deep-frying can be highly irritating to the nose, eyes, and throat mucosa, and can cause various respiratory diseases.

Keep the window open when cooking to allow air convection, and continue to open the window for more than 10 minutes after cooking. If there is no window in the kitchen, turn on the range hood for ventilation.

3. After taking a bath

After taking a shower, water vapor condenses in the bathroom and the humidity is very high, which is easy to breed mold. Be sure to ventilate and dry it in time. After taking a shower, open the doors and windows immediately to remove moisture, or turn on the exhaust fan in the bathroom for ventilation.

4. Cleaning

When cleaning the room, the indoor air is densely populated with pollutants, and a large number of bacteria, dust mites, and dandruff will float in the air.

When cleaning, make sure to open the windows for ventilation. If necessary, you can also wear a mask to avoid inhaling fine particles.

5. Before going to bed

Opening windows for ventilation before going to bed can increase the oxygen in the indoor air and facilitate sleep. Open the window for 15 minutes half an hour before going to bed.

4 times you shouldn’t open the window

1. Weather conditions such as haze, sandstorms, etc.

On foggy and dusty days, the outdoor atmosphere is heavily polluted by particulate matter. Doors and windows should be closed to reduce the impact of air pollution on indoor air quality. You can choose to use an air purifier or humidifier to improve the living environment.

2. Light rain

When it rains lightly, the wind speed and force are relatively low, which is not conducive to the dilution and diffusion of pollutants. Various pollutants suspended in the atmosphere will form wet deposition due to precipitation erosion, aggravating air pollution.

After it rains for a while or when the sky clears up, the air outside gradually becomes fresher and the negative oxygen ions in the air begin to increase. At this time, opening windows for ventilation is the best effect.

3. Windy days

When the wind blows, dust is easily raised, causing the spread of pollutants in the air. Wait until the wind is lighter and then open the window, but don't open it completely, just open it a crack. If the wind speed is above level 5, it is best to temporarily close the windows.

4. Morning and evening peak hours

During the morning and evening rush hours, industrial pollution and automobile exhaust make the air quality worse. The air is especially polluted near the road.

If you live near a main traffic artery, you should open windows for ventilation and avoid the morning rush hour around 10 o'clock.

There are some rules for opening windows

1. Window opening time

8:00-11:00 am, 13:00-16:00 pm. During this period, the atmospheric diffusion conditions are relatively good, the pollutant concentration is low, and opening windows for ventilation is more effective. The best time to open windows for ventilation is around 10 am and 3 pm.

2. Window opening time

Open the windows for ventilation for 20-30 minutes each time. If the window is only opened a little, the ventilation time can be increased to 30 minutes to 1 hour.

3. Number of window openings

Opening the windows 3 to 4 times a day is sufficient. Opening windows frequently or for long periods of time will actually reduce indoor air quality.

4. Window opening method

Convection is formed, with both inflow and outflow. The best way to open windows is to open the two vents that are farthest apart in the room. The ventilation effect can only be good if air can flow in and out of the entire room.