With the continuous development of the times and the continuous advancement of science and technology, environmental pollution has become more and more serious. Some people may think that serious outdoor environmental pollution has nothing to do with me. I don’t even go out when I go out. There is no need to buy an air purifier. Some people think that my house is an old house and there is no problem of air pollution or decoration pollution! Or the home is often ventilated or there are many green plants, and I think there is nothing wrong with the air at home!
So, is this really the case?
This does not mean that pollution in the environment we live in no longer exists. Indoor pollutants such as formaldehyde, peculiar smell, bacteria and mold have not disappeared or reduced. Therefore, in the face of these pollution sources, it is very necessary to have an air purifier at home, and this air purifier is also very necessary to purchase, and the effect can be seen. Yes, the daily use of air purifiers is the sensible way to protect respiratory health.
1. What can an air purifier do?
The air purifier can:
Remove unpleasant odors: such as the fishy smell of food;
It can capture allergens emitted by pets: smells, dander, etc. will be mixed in the air;
Eliminate smoke: whether it is smoking or the smell of smoke when cooking;
Capture suspended particles in the air: No matter how clean the home is, there will be some suspended particles in the air;
Filter out most of the bacteria in the air;
Filter out seasonal allergens: such as pollen;
Research on the effects of air purifiers on cardiovascular and cerebrovascular diseases, and found that the health of the participants' cardiovascular and cerebrovascular diseases has improved;
Formaldehyde removal: The activated carbon in the filter of the air purifier can absorb formaldehyde; when exposed to ultraviolet rays, it can decompose formaldehyde into non-toxic and harmless carbon dioxide and water.
2. What is the principle of an air purifier?
Generally speaking, air purifiers are mainly composed of filters, motors, fans and other components (air purification products with sterilization function also include photocatalysts, UVC lamps, ozone generators and other components). The motor and fan inside the product make the air generate air circulation. After the dirty air is filtered and absorbed by the filter and the inside of the machine, bacteria and viruses are eliminated, the clean air is sent out through the air outlet.
The core purification technology, including the filter, determines whether the air purifier is useful. With HEPA high-efficiency light-tone multi-layer progressive filtration technology, the dual combination of electronic adsorption and filter filtration can remove micron-level particulates in the indoor air, including PM2.5, second-hand smoke, pollen, bacteria and other particulates; formaldehyde, Gaseous pollutants such as benzene. In addition to dust particles, an air purifier with a HEPA filter is required, and an air purifier with a HEPA filter can also capture droplets transmitted by the coronavirus. The air purifier with activated carbon filter and negative ion function can better remove the peculiar smell in the air. It is not recommended to purchase an air purifier without a HEPA filter.
3. What are the effects and functions of air purifiers?
Under normal circumstances, a person needs to consume 1 kg of food, drink 2 kg of water, and breathe 32 kg of air every day. According to a study by the World Health Organization, the degree of air pollution that people breathe indoors is 2-5 times that of outdoor air, sometimes even as high as 100 times, because indoor air pollution contains all outdoor pollutants, as well as cooking fumes. As well as decoration materials, carpets, and harmful gases released by the burning of cigarettes, etc., they have the characteristics of wide sources, multiple types, high emission frequency, long cycle, high concentration, long human contact time, and great harm to human health. However, modern people almost 90% of activities are carried out indoors. These pollutants are caused by outdoor car exhaust, industrial waste gas, etc. entering the room with the opening of the window, the air will go out from the gaps and other places, but a large amount of particulate matter will remain. As a result, breathing polluted indoor air for a long time can cause headaches, dizziness, fainting, irritating eyes, ears, nose, and even respiratory diseases such as incurable allergies and asthma. Indoor air pollution has become an invisible killer that cannot be ignored.
In order to solve the problem of indoor air pollution, organizations like the US Environmental Protection Agency recommend that everyone use air purifiers.
The role of air purifier
1 Purify the air
Air negative ions make dust, smoke, pollen, droplets, water droplets and suspended microorganisms and other air-soluble substances easy to accumulate, and can oxidize with organic substances in the air to eliminate the peculiar smell, so it has the effect of cleaning the air and improving the quality of the environment. ；
Air negative ions can combine with bacteria, microorganisms and viruses attached to dust in the air to make them drop. Experimental studies have proved that negative air ions have a strong inhibitory effect on air microorganisms, causing viruses to lose their ability to attack cells, thereby killing and reducing bacteria to purify the air;
3 Eliminate static electricity
Static electricity is generally caused by positively charged ions. The negative ions in the air will combine with positive ions to eliminate static electricity;
4 Biological effects
Experimental studies and clinical observations show that negative air ions have many biological effects on the body. After use, the air becomes very fresh, which can reduce various air pollution and bring a comfortable environment.
Winter is the season of relatively dry air, especially for heating to the north, and doors and windows need to be closed tightly, resulting in poor indoor air quality. The air purifier can provide a steady stream of fresh and humid air to the room after purifying the indoor air, thereby improving the overall quality of the indoor air, adjusting the indoor air humidity through the humidification function, and maintaining the humidity suitable for home life.
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