How to replace the air purifier filter ?How often to replace the air purifier filter?

When the air purifier is constantly working, it is easy for the filter to absorb too much dust and impurities, resulting in a decrease in the energy efficiency of the purifier. Therefore, the air purifier filter needs to be replaced frequently, so when is the air purifier filter replaced?

The air purifier filter actually has several layers. The first layer is a large air-conditioning filter. This filter is also called a pre-filter. Its main function is to filter some large-particle pollutants. After a period of use, it will These pollutants stick together, and then block the filter screen, affecting the filtering effect of the air purifier, so it needs to be cleaned frequently and does not need to be replaced.

The HEPA filter cannot be washed, and is generally replaced every 6 months. In cities with poor air quality, the service life of the HEPA filter is no longer than 3 months, or even shorter. So this HEPA filter needs to be replaced frequently. In order to save costs, some users use a vacuum cleaner to clean the dust on the filter, but the surface of the filter is already black and cannot be cleaned, so it still needs to be replaced, otherwise the effect will still be bad.

The activated carbon filter also needs to be replaced frequently, because activated carbon has a saturation problem. Once the activated carbon adsorption capacity is saturated, if it is not taken out in time, the surface of the activated carbon will no longer have the ability to adsorb, and these dirty substances may be discharged in the In the air, it is harmful to the human body, so everyone must replace the activated carbon in time, or take out the activated carbon and expose it to the sun before using it, which can also achieve a good filtering effect.

The activated carbon filter also needs to be replaced frequently, because activated carbon has a saturation problem. Once the activated carbon adsorption capacity is saturated, if it is not taken out in time, the surface of the activated carbon will no longer have the ability to adsorb, and these dirty substances may be discharged in the In the air, it is harmful to the human body, so everyone must replace the activated carbon in time, or take out the activated carbon and expose it to the sun before using it, which can also achieve a good filtering effect.

Most air purifiers have their own reminder lights for filter replacement. When the filter indicator light is on, it is to remind consumers that the filter needs to be replaced. However, most of the air purifier's filter indicator light is a timer, which cannot detect the wear and tear of the filter. Users need to decide according to the actual situation of the product brand they purchased.

      The above is the time analysis of air purifier filter replacement introduced for you. In fact, there is no exact replacement time for the filter of the air purifier. If you encounter a city with poor air quality, it is best to replace it once a month, so as to ensure a better filtering effect. Especially activated carbon has strong adsorption capacity, but it is easy to be saturated, so it needs to be taken out in time and exposed to the sun before reuse.。