The house is resurgent. Should I open the window or close it?

The house is resurgent. Should I open the window or close it?

Whether to open the window or close the window for family resurgence, friends living in the south will have such a problem, that is, the house resurgence. The resurgence of the wall of the house is really distressing, and many people will worry about it. So how do we solve it? Should we open the window or close it? Should we open or close the window in the resurgence of the family?

Should I open or close the window at home? 1 The window was closed most of the time on the day of resurgence. On the day of resurgence, because the air humidity is very high, you will feel that the air outside is very humid. At this time, if the windows at home are still open, the humid air outside will enter the room, and the whole indoor air will become very humid. If the indoor humidity is high, many things in the room will get wet, especially the quilt cover.

It will feel very wet, and there may be a lot of water droplets on the wall. It is not good for people to stay in this humid environment for a long time. It is best to close the windows on the day of resurgence. However, in order to get some air in the room, it is ok to open the window for a short time on the resurgence day.

The cause of the resurgence

The reason is that after a winter in southern China, the temperature of objects is low, and it rises in March in spring, so the temperature of objects (especially thick and large objects) cannot rise for a while. At this time, the surface of the low-temperature object meets the steam from the south wind from the Pacific Ocean (the south wind absorbs a lot of water vapor when passing through the Pacific Ocean), and the water vapor forms water, which is the reason for the resurgence.

There will be one, two and three times in the south, because the north wind blows. When the north wind is dry, blow dry. The resurrection day will not end until the object is heated to a certain temperature.

How to prevent or reduce resurgence?

Intermittent ventilation. Close the doors and windows facing south, that is, in the windward direction, and only open the doors and windows in the downwind direction to reduce the water vapor from entering the room. At noon, the outdoor air humidity is at the highest value, which is not suitable for opening windows. It should be adjusted in the afternoon or at night when the climate is dry. After the weather clears up, open all doors and windows to accelerate the evaporation of water.

Lime hygroscopic lime is a good and simple adsorbent. 1 kg quicklime can absorb about 0.3 kg of water in the air. It can be wrapped in cloth or sacks and placed in various places indoors to keep the indoor air dry.

Indoor heating mode. Build a charcoal fire or put a stove in a humid room to raise the indoor temperature so that the water vapor can't condense, thus reducing the indoor humidity.

Air conditioning pumping method. Air conditioning is not only used to adjust the indoor temperature, which is warm in winter and cool in summer, but also can be used as a "dryer" to prevent clothes and furniture from getting damp and moldy in wet season.

Wet pumping of professional dehumidifier. Needless to say, there are professional dehumidifiers on the market. Since it is professional, the dehumidification effect is of course more obvious, but the price is a bit expensive, the price is 1 thousand. If you have the conditions, you might as well add one.

When the house is wet, whether to open the window or close the window is generally divided into two situations. If it is hot, be careful not to open windows for ventilation during the day, especially in southern and coastal cities. Pay special attention in summer and ventilate the room at sunset.

Breathe and breathe, don't be self-defeating

Open all windows when it is wet indoors, and close the doors and windows when it is wet in spring to prevent outdoor moisture from entering the room. When the weather is dry in winter, you can open windows in wet places such as bathrooms and kitchens. Generally, there will be a lot of boiling water attached to the bathroom after washing, and the windows can be cleaned after ventilation for one night.

Newspapers remove moisture.

If the humidity at the entrance is high, you can spread an old newspaper or blow it with a hair dryer. Don't hang clothes in the middle of the night in wet weather, you should put them away after 7 pm.

Wardrobes, drawers, shoe boxes and other places can be dehumidified with moisture-proof agents, activated carbon or absorbent bags. Generally, some dehumidified things need to be put in the cupboard. Even in cabinets that are not exposed to hot and humid weather and are not exposed to the sun all the year round, bedding and clothes are particularly wet.

1, open windows as little as possible. It is necessary to close the windows, especially the doors facing south and southeast. Closing the window can reduce the chance of humid air sneaking in, especially in the morning and evening. It is necessary to open the window in sunny afternoon, but try not to open the window for too long.

2. Place desiccant, dehumidifier, dehumidification box, dehumidifying bag and other items indoors. Take desiccant as an example, it can remove moisture from wet substances. One is chemical desiccant, such as calcium sulfate and calcium chloride, which 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.

3. If you mop the floor with a dry mop, it is particularly easy to regain moisture. If you mop the floor, never use a wet mop to mop the floor, 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 mop it with a dry mop, which is not only easy to dry, but also can reduce the indoor humidity.

Whether opening or closing a window at home is the best way to close the window correctly.

Generally speaking, the humidity in the house is mostly caused by the humidity of the outside air and the resurgence weather. At this time, if you open the window for a long time, the outdoor water vapor will enter the room, which will make the room more humid. It's best to close the window to prevent outdoor high humidity air from entering the room.

However, if this rainy and humid weather lasts for a long time, closing the window for a long time will lead to the decline of indoor air quality and make people feel dizzy, chest tightness and other discomfort, so it is necessary to open the window appropriately, which can reduce the risk of disease infection. It is recommended to open the window after rain, sunny days and around 3-4 pm. Why is the weather back?

1, the indoor temperature difference is large. The main factor of moisture regain weather is the large temperature difference between indoor and outdoor, especially in spring and winter, when the cold air has just left, the surface temperature is low, the indoor air humidity is high and the outdoor temperature is high. When warm moisture enters the room, it will form condensed water droplets, which is what we often call water droplets.

2. The moisture infiltration of the ground is more obvious in the first floor, because the gaseous moisture in the foundation soil can penetrate into the ground through the ground, resulting in high humidity and wet surface, which is also the reason why the resurgence weather is mostly in the spring rainy season.

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.