What are the more effective indoor ventilation methods?

1. Open windows frequently for ventilation. Even in winter, the wind should be blown every once in a while, even if it is short. Opening windows for ventilation helps in the circulation of air, so that the indoor air quality is improved.

2. Raise plants. Plants can be placed in the indoor environment to achieve the purpose of purification, such as: spider plant, aloe vera, tiger tail orchid, etc. Activated carbon can also be placed to remove harmful substances in the indoor environment through physical adsorption, and it is best to have a pot every ten square meters.

3. Use an air purifier. Air purifiers, also known as "air cleaners" and air purifiers, refer to those that can adsorb, decompose or transform various air pollutants.

Generally speaking, there are two more effective indoor ventilation methods, one is natural ventilation, and the other is forced ventilation. Natural ventilation is to open doors and windows. Forced ventilation is to use an electric fan, or an exhaust fan, to quickly exhaust the indoor air to the outside.

There are many ways to ventilate the room, such as directly opening the doors and windows for ventilation, and you can also blow the electric fan against the doors and windows to accelerate the convection between the air; The ventilation fan is very versatile, and it can be used for ventilation without opening the window, but the efficiency and speed are not high; Air purifiers are able to rely on activated carbon for ventilation and adsorption.

Open the window and open the door at the same time to form a convective wind, and then it is better to have an air purifier, and at the same time open the purified air to release oxygen ions.

In the morning, open the windows for ventilation at noon.

The indoor line is convection.

The fresh air in the wilderness is due to the free movement of the air. In the same way, the door and window of the home can be opened to achieve convection conditions, and the ventilation can be quickly achieved.

There is a lot of indoor ventilation, such as directly opening the doors and windows for ventilation, the electric fan blows on the doors and windows, and the convection ventilation fan between the accelerated air should be extensive, and the ventilation should be done without opening the window, but the efficiency is fast. Not high, air purifiers rely on activated carbon for ventilation and suction.

There are four commonly used ventilation methods:

Open type (on the premise of meeting the requirements of functional and meteorological factors, it should be preferred).

Skylight ventilation (according to the production conditions, consider the facilities to prevent rain and sand).

Mechanical exhaust (explosion-proof motor is adopted, when the combustible substance or fibrous substance reaches a certain concentration, the explosion-proof motor is automatically turned on).

Exhaust hood exhaust (for buildings where flammable gases are lighter than air and tend to accumulate on top).

Opening windows for ventilation helps keep indoor air fresh. Normal people have to breathe 16 18 times per minute, carbon dioxide accounts for 4 in the exhaled air, plus the air itself contains a certain amount of carbon dioxide, if the total content of carbon dioxide in the living room reaches 5, the human body will suffocate. Therefore, in the family with the doors and windows closed, there is a special smell in the house, which is a manifestation of insufficient oxygen in the room.

Living in such an environment for a long time, the human body will show various symptoms due to the lack of oxygen, such as dizziness, headache, palpitation, fatigue, and increased blood pressure.

With a temperature difference of 20 between indoor and outdoor, it takes 9 minutes for an 80 cubic meter room to be completely ventilated; If the temperature difference between indoor and outdoor is 15, it takes 11 minutes to open the window; If the temperature difference cannot be accurately grasped, 30 minutes of window opening is sufficient. The window opens at 9:00 a.m. to 11:00 a.m

00 p.m. or 2:00 p.m. to 4:00 p.m. 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. Of course, the wind speed should not be too fast when opening the window for ventilation, and it should not exceed the meter second. From a sensory point of view, at such wind speeds, the human body does not feel that the air is moving significantly.

Opening windows for ventilation can destroy the growth environment of the seeds, so as to achieve the purpose of eliminating them. Warm, poorly lit and poorly ventilated rooms are suitable for the growth and reproduction of bacteria and viruses, thus increasing the chance of respiratory diseases in the human body. A hospital study in the United States confirmed that poor ventilation and low humidity in the living room are most conducive to the transmission of ** caused by pneumococcus A and hemolytic streptococcus.

By opening the window for ventilation, on the one hand, all kinds of amines can be discharged outdoors, and on the other hand, the concentration of acans in the unit space can be effectively reduced, and the invasiveness of acans on the human body can be reduced.

Opening windows for ventilation can make people get more "air vitamins". The negative ions in the air can improve the function of the body's immune system, respiratory system and central nervous system, and regulate the excitability of the cerebral cortex, which is known as the "air vitamin". This kind of negative ion is abundant in mountains, forests and coastal areas, containing about 2,500 per cubic centimeter of air.

In terms of the same unit volume of air, there are about 1,000 negative ions in rural fields, about 600 outdoors in towns, about 300 in modern buildings, and only a few dozen in closed indoors. By opening the window for ventilation, negative ions that are beneficial to the human body can be introduced into the house, which is of great benefit to human health.

Generally speaking, the windows should be opened for ventilation once a day in the morning and afternoon, each time not less than half an hour, 9 11 o'clock in the morning, 2 4 o'clock in the afternoon is the best time to open the window for ventilation, because the air quality is the best during these two time periods. In addition, the kitchen is an important part of indoor air pollution**, and it is necessary to turn on the exhaust fan or range hood when cooking to remove harmful gases in time.

Benefits of open windows.

Frequent opening of windows for ventilation can effectively remove harmful gases in the indoor air and purify the indoor air.

It has been measured that when all doors and windows are open and indoor and outdoor air convection is good, it can be used to exchange indoor and outdoor air after 15 minutes.

2. Frequent opening of windows for ventilation can greatly reduce the content of germs in the indoor air.

It has been determined that in an environment where doors and windows are closed and the air is dirty, the number of bacteria contained in each cubic meter of air can be as high as tens of thousands, and only a few thousand bacteria are left after the windows are opened for ventilation.

3. Frequent opening of windows for ventilation can increase the content of negative ions in indoor air.

In general, the living room in the city contains only 40 50 negative ions per cubic centimeter of air, while there can be 100 200 in the outdoor air; There can be 700,1000 in the air in rural fields and more than 20,000 in the air in forests and seashores.

Because the negative ions in the air can improve the ventilation function of the lungs, stimulate the central nervous system, promote blood circulation and hematopoietic function, and enhance the function of the cerebral cortex, it is known as the "air vitamin". The increase in the content of negative ions in the indoor air will make people feel fresh, feel comfortable, and be good for health.