How often should the air purifier filter be changed?

　　Because of long-term filtration, the filter will absorb a large amount of bacteria, dust particles, and even block the filter, which will affect the purification effect of intake and air, so it should be cleaned in time. The purification, adsorption, sterilization, high-frequency, high-load purification of the air purifier reduces the service life of the purifier and saturates the purification consumables. In this case, the filter screen needs to be replaced to avoid a decrease in the purification effect.

　　Most air purifier manufacturers make products that have a light to change the filter. When the filter indicator is on, the consumer is prompted to replace the filter. However, the filter lights of most air purifiers are timers, which cannot detect filter wear. Users need to decide according to the actual situation of the product they purchase. The front filter of the air purifier can be cleaned with clean water. After cleaning, it needs to be dried with a hair dryer or placed in an air purifier. Dust can also be removed with a vacuum cleaner or a rag. The washable deodorizing filter can be washed under the tap. Except for formaldehyde filters and HEPA filters, they must be replaced regularly. In newly renovated rooms, except for the large loss of formaldehyde filter, generally try to replace it once a year. The life of HEPA filter is as long as 10 years, but the actual replacement time is 2 to 5 years, and areas with serious PM2.5 problems must be replaced. frequency.

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