Air purifier filter life is only 3 months

Qian Hua, a senior engineer at the Shanghai Institute of Environmental Science, frankly stated that some air purifiers in the market today claim to have changed their filter cartridges for five years or ten years. "Unless you use it once a year."

Qian Gong said that the core components of air purifiers (also called filter materials) generally have four types. The first is the filter material, the second is the electrostatic field, the third is the adsorption material (mainly eliminate formaldehyde, benzene and other harmful substances), and the fourth is the catalytic decomposition material. Among them, there are three types of filter materials: primary filter, medium filter, and high filter. The primary filter material removes odors such as hair, and is priced at between 10 yuan and 20 yuan. The filter material is 50 yuan. There are more than ten kinds of high filter materials. The best of these is HEAP (high-efficiency filter material that removes cigarette smoke). The price is about 100 yuan.

"At present, air purifiers on the market, prices ranging from 500 yuan to 10,000 yuan, the important difference is the use of different filter materials." Qiang told consumer electronics consumption network, low-grade air purifiers generally do not use HEAP filter , The price is relatively cheap; Some air purifiers do not add adsorption filter, can not eliminate formaldehyde, benzene and other harmful substances. Consumers must have some basic knowledge when purchasing.

He pointed out that consumers do not need to purchase air purifiers that cost tens of thousands of dollars on the market. "Air purifiers that are selling at a higher price will also need to replace the filter cartridges in three or five months."

Qian Gong pointed out that if the filter element in the air purifier is not cleaned or replaced for a long time, it will not only fail to purify the air, but will become a breeding ground for bacteria, and even endanger the health of consumers. “Beijing has the most serious air pollution in the late autumn and winter. It is recommended to replace the filter element of the air purifier once every quarter for up to four months.”

Qian Gong also suggested that in the days of smog and sand, it is also necessary to reduce the time for window opening and ventilation. When the pollution is particularly heavy, avoid opening the windows. In addition, the house is often vacuumed and smoked indoors, reducing the "burden" of the air purifier and reducing the cost of use.