Is it better to open the window or not to open it in rainy days?

Spring is coming, everywhere is wet, and it rains frequently. The walls, doors and windows at home are getting wet. I don't know if it is better to open the window or not to open the window when the weather is wet during this virus period.

Is it better to open the window in rainy days or not to open it?

It depends.

1. Under normal circumstances, when there is more rain in wet weather, it is easy to get out of the house. If you open the window, it is easy to increase the humidity of indoor air, leading to moldy food, clothes, furniture and other items. Living in a humid room for a long time is not good for your health. In addition, if the room is humid, it is more conducive to the growth and reproduction of bacteria and viruses. Therefore, in wet weather, it is usually best not to open the window.

2. However, if there is virus in the air, ventilation will reduce the virus concentration formed by respiratory droplets in the air, so in this case, it is necessary to open the window for ventilation to reduce the risk of infection.

pay attention to

On wet and rainy days, various pollutants suspended in the atmosphere will form wet deposition due to the erosion of precipitation. The heavy rain is coming. Just after the rain, the air is still in a state of serious pollution. This time is not suitable for opening the window for ventilation. If it rains for a long time, try to open the window when the rain is light.

Will wet weather affect the virus?

1, temperature effect

In terms of temperature, when the temperature is high, the human body's yang rises, blood vessels dilate, blood circulation is accelerated, human immunity is enhanced, and respiratory symptoms are alleviated, which is conducive to preventing the spread of the epidemic. However, if the temperature is low, people are prone to catch cold and get sick, and basic diseases such as cardiovascular and cerebrovascular diseases are aggravated, which is not conducive to epidemic prevention and control.

2. Humidity influence

In terms of humidity, humidity can make droplets absorb water to a certain extent, and its lateral transmission distance will be shortened, which has a certain effect on preventing virus transmission. In a dry environment, some bacteria and viruses are easy to breed, which may induce cough, and droplets are easy to float far away.

3. The influence of wind

A strong wind can accelerate the spread of the virus, but it is beneficial to reduce the virus density per unit space; However, it is easy to make the air dirty when the wind is small, and it is even more necessary to avoid people gathering.

4. Travel impact

Sunny weather is convenient for travel and easy to encourage people to gather in public places; But good weather is conducive to washing and drying clothes and quilts, sterilization and disinfection, and opening windows for ventilation. On the contrary, rain and snow weather can reduce people's gathering, make pathogenic microorganisms sink to the ground and purify the air; However, it may lead to the decrease of ventilation and indoor air quality.

Hot and humid rainy days are easy to make walls grow spots, clothes become moldy, and bacteria and viruses will multiply and spread in large numbers, causing infectious diseases and skin diseases. The following measures should be taken to prevent moisture and damp.

Is it useful to turn on the air conditioner for dehumidification in wet weather?

Useful.

The working principle of air conditioning dehumidification is that in the process of dehumidification, the indoor heat exchanger will act as an evaporator to absorb heat, while the indoor fan is always running at a low speed and the compressor is also on and off. The refrigeration system does intermittent refrigeration cycle, which turns the water vapor in the indoor air into condensed water, and then discharges it through the drain pipe of the air conditioner, and the re-released air will be dry, thus achieving the effect of adjusting the humidity of the indoor air.

However, the actual dehumidification amount brought by air conditioning dehumidification is relatively small, and the dehumidification speed is also relatively slow. When the room is very humid, air conditioning dehumidification will not be enough. The following measures are suggested to solve the indoor humidity quickly.

In addition, air conditioning can only make indoor air circulate by itself, and the ventilation effect can't replace window ventilation, and central air conditioning may spread diseases, so it should be avoided during the epidemic.

Quickly solve the indoor humidity

1, open as few windows as possible.

In wet weather in spring, we must pay attention to closing the windows, especially those facing south and southeast. Closing windows can reduce the chances of humid air entering, especially in the morning and evening. We should open the window in a sunny afternoon, but try not to open the window for too long.

2, indoor desiccant, dehumidifier, dehumidification box, dehumidifying bag and other items.

Take desiccant as an example, it can remove moisture from wet substances. A chemical desiccant, such as calcium sulfate and calcium chloride, is dried by combining with water to form hydrate. The other is physical desiccant, such as silica gel and activated alumina, which is dried by physical water absorption. For example, when the floor at home is wet, you can put some desiccant in the corner, which can effectively prevent moisture dehumidification. You can also buy dehumidifiers, dehumidification box, dehumidifying bags and other indoor dehumidification items, which can solve the indoor humidity phenomenon well.

Step 3 mop the floor with a dry mop

If the house is tiled, it is particularly easy to regain moisture. If you mop the floor, never use a wet mop, which will only increase the humidity in the room. It is suggested that you can add salt to the water when mopping the floor, then mop the floor with warm water, and finally dry it with a dry mop, which is not only easy to dry but also can reduce the indoor humidity.