Can I open the windows for ventilation in hazy weather?

Try not to.

Try not to open the windows when the foggy weather escalates; if you really need to open the windows for ventilation, try to avoid the peak hours of morning and evening haze when opening the windows. You can open the windows a little for ventilation to prevent The wind blows directly in, and the ventilation time is preferably half an hour to an hour each time.

Deep fog refers to a weather phenomenon in which horizontal visibility is less than 500 meters due to numerous small water droplets or small ice crystals suspended in the air near the ground.

When a large number of small water droplets or ice crystal particles are suspended in the air near the low level, making people's vision blurred, and when the horizontal visibility distance of the person concerned drops below 1,000 meters, it is called fog.

At night and early morning when the weather is clear, the wind is gentle, and the water vapor near the ground is relatively abundant and stable, the meteorological conditions are sufficient to form fog.

Fog is a visible collection of large numbers of fine milky white water droplets and ice crystals suspended in the near-surface atmosphere. According to the degree of visibility, it can be divided into five levels: light fog, heavy fog, dense fog, strong dense fog and extremely strong dense fog.

What to do in heavy fog weather:

For different levels of heavy fog warnings, the defensive measures of relevant units and individuals are also different. However, generally pay attention to the following four points:

1. Try not to go out. When you must go out, wear a mask.

2. Try to minimize activities in the fog and do not exercise in the fog.

3. Pedestrians should be careful when crossing the road and should see the passing vehicles clearly.

4. Slow down when driving vehicles and cars, obey the instructions of the traffic police, do not rush to get on the bus (boat), and do not crowd at the ferry when the ferry is suspended.