Blue Sky Filter is a professional air filter supplier and car air filter manufacturer in China since 2009.

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When do I need to replace the air purifier secondary filter?

by:Blue Sky Filter     2022-03-08

The filter should be cleaned evenly

The common first layer of filter inside the air purifier is a pre-filter in the shape of a large air-conditioning filter, which can pre-filter such as hair, pet hair, etc. Large particle pollutants. However, when it is used for a long time, a certain amount of dust will accumulate, which will affect the air intake and the effect of air purification, so it needs to be cleaned in time.

The pre-filter is generally cleaned 1-2 times a month. The filter can be removed when cleaning, and the dust can be removed with a vacuum cleaner or a rag. If the manufacturer indicates that the filter can be washed, After washing it with clean water, it needs to be dried or dried with a hair dryer before putting it into the air purifier.

The life of the HEPA filter is generally 3 months.

The filter using HEPA technology cannot be washed with water unless it is specified, but in the current domestic air pollution situation is relatively serious The life of the HEPA filter is generally only 3 months or even shorter, which means that the HEPA filter needs to be replaced frequently.

Replace the filter when it turns from white to black

Although the replacement cost of the HEPA filter is high, cleaning it with a vacuum cleaner can also prolong its service life to a certain extent, but if it is generally When the white HEPA filter surface has turned black, it is recommended to replace it as soon as possible in order to ensure the air filtration effect and health.

Since different types of purifiers and different frequencies of use will affect the replacement time of the filter element, there is no uniform requirement. For example, under the weather conditions in Beijing, if the frequency of use is normal, the filter of the purifier is recommended to be replaced every 1-2 months.

Specific judgment method: If you disassemble it and find that the filter element of the purifier has turned black, or if you touch it lightly with your hand, you can see obvious dust falling off, it is time to change the core. If you smell bad and change it, it's already too late.

Electrostatic adsorption purifiers need to be cleaned in time

In addition to HEPA filter air purifiers, there are also household electrostatic adsorption air purifiers. Although the household electrostatic adsorption air purifier does not need to replace the filter, it needs to be cleaned regularly. The tungsten wire of the electrostatic precipitator continuously releases high-voltage static electricity, so that the dust and bacteria that come in with the air are positively charged, and then adsorbed by the negative electrode plate. It can filter dust and smoke smaller than cells. Fully protect the respiratory system and greatly reduce the risk of cancer.

The household electrostatic adsorption air purifier is easy to use. After a week or two of use, it can wash out black and dirty water and reduce secondary pollution. There is no need to replace expensive consumables, and it can be electrostatically sterilized. The electrostatic tungsten wire releases high-voltage static electricity, instantly kills bacteria and viruses, and is more effective for eliminating colds and preventing various infectious diseases. However, if some brands do not control the ozone release well, it is easy to cause harm to the human body. Additionally, the electrode plates require regular manual cleaning.


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