Different indoor pollutants require different air purifiers to deal with

　　Because the smoke problem has received too much attention, we almost equate air purifiers with smoke purification. In fact, indoor air pollutants are very complex. PM2.5 refers to particles with a diameter less than or equal to 2.5 microns in the atmosphere, and is one of the particulate pollutants.

　　Indoor air pollutants mainly include: particulate pollutants, gaseous pollutants and microbial pollutants. Formaldehyde, toluene, etc. are common gaseous pollutants, while PM2.5, dust, SO2, etc. are common particulate pollutants, and bacteria and viruses are common microbial pollutants.

　　The situation of indoor pollutants is different in different regions and at different times. Autumn and winter are the periods of high incidence of smog. PM2.5 is the main indoor air pollutant. Generally, northern cities have more serious pollution than southern cities. When we buy an air purifier, we will find that each machine will indicate a CADR value, which is clearly stipulated in the GB/T 18801-2015 "New National Standard for Air Purifiers". Among them, one item is the CADR value of particulate matter, which is a measure of the air purifier's ability to remove particulate pollutants from indoor pollutants. In theory, residents in northern cities should pay more attention to the ability of the machine to remove particulates when choosing air purifiers, because the smog in the north is more serious.

　　In spring, allergens such as pollen are the cause of skin itching and respiratory diseases. At this time, Chongqing air purifiers with allergen-removing functions can come in handy. In fact, in Japan and other countries, since smog is not a major air pollution problem, most people buy air purifiers to remove pollen and other allergens.

　　When it comes to the hot summer, the high temperature and humidity in the southern region cause serious formaldehyde volatilization. Excessive formaldehyde is carcinogenic. What should I do at this time? Fortunately, most Chongqing air purifiers have the function of removing formaldehyde. Like the CADR value of particulate matter, the air purifier will also mark a CADR value for formaldehyde. If you have a strong need for formaldehyde removal, you must pay attention to the value of this value.

　　Therefore, general air purifier products not only have the ability to remove formaldehyde, but also remove allergens, formaldehyde, and bacteria. From the spring when pollen is scattered to the summer when formaldehyde is severe, to the winter when the haze is high in autumn and winter, the role of air purifier can be used for almost a whole year. Of course, this also puts forward higher requirements for air purifiers, which must have purification performance with a variety of purification capabilities. The recently released Yaneng air purifier is such an air purifier with strong comprehensive capabilities.

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