Why don't doctors recommend using air purifiers?

The air purifier itself is a product that can improve air cleanliness by adsorbing, decomposing and transforming various air pollutants, which can let us breathe clean air and is beneficial to our health. So the air purifier itself is harmless. However, the air purifier is also a kind of mechanical equipment, whether it will be harmful or not depends on its working principle. At present, the working principles of air purifiers on the market can be roughly divided into the following categories: the filtration mode is actually to inhale air through different levels of filter elements, and under the drive of the fan, the dirty things in the air are blocked on the filter screen through the filtration function of the filter screen, so that clean air can flow over, thereby purifying the air. This kind of air purifier is likely to cause harm to human body, and the filtered dirt remains on the dirt. If the filter element of dirt cannot be replaced in time, these dirt will drift into the air again with the movement of airflow, which is usually called "secondary pollution" in the industry. At this time, the air purifier itself has no purification function, but has become a new air pollution source, which is harmful to our health. Electrostatic static electricity is to release charged static electricity from the inside of the air purifier, absorb pollutants in the air, and leave dirty things on the electrostatic dust collection board inside the air purifier through the interaction of positive and negative charges. Electrostatic air purifiers are most likely to cause harm: first, a large amount of ozone will be produced during purification, which is harmful to human body; The other is that electrostatic adsorption is also very saturated, which will also produce secondary pollution. Moreover, the replacement and cleaning of electrostatic dust collection plate are very troublesome, and it is easy to contact pollutants when cleaning, which will cause harm to the body. New technology types In recent years, with the continuous development of science and technology, air purifiers are constantly upgrading, and many new environmentally friendly air purification technologies have entered the market, such as waterfall purification and ion waterfall purification. In the last two years, the air purifier in Yahweh, Finland is very popular, using the air purification technology from Finland, Ion Waterfall. According to the existing test report and market feedback, the air purifier in Yahweh, Finland does not need a filter element, nor does it produce ozone and adsorption saturation like electrostatic precipitation, so it is a brand-new air purification product. In a word, the air purifier is actually a product to protect our health and improve our quality of life. No matter which product you choose, you should send it for regular maintenance, so as to avoid these hazards. Generally speaking, the advantages of air purifier outweigh the disadvantages, and it is suitable for daily life.