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Air purifier can not do without the filter maintenance knowledge, which is the core. The filter screen filters the air and keeps harmful substances on the filter screen. Therefore, it is necessary to replace it regularly. Let’s have a look. the air purifier uses more than one filter screen, so the maintenance methods are not the same. First of all, the front filter screen will gather more dust, which has the greatest impact on the air inlet volume of the air purifier, and will eventually have a certain impact on the air purification effect. Therefore, when maintaining the air purifier filter screen, the first thing to do is to The attention is to clean it. The cleaning method is very simple. As long as the dust is sucked away by vacuum cleaner or washed by clean water directly, attention should be paid to the gentle action in the maintenance process, so as to avoid physical damage to the filter screen, resulting in the failure to produce the effect it should have in the subsequent use process. secondly, attention should be paid to the cleaning of the filter screen. The cleaning method of the filter screen is essentially different from that of the front filter screen. In the cleaning process, not only the dust should be removed, but also the regular exposure to the sun should be paid attention to. The purpose of this method is to eliminate the bacteria existing in the filter screen, and then the effect of the cleaning effect is achieved It will be more ideal, such as the activated carbon filter screen used by many users. This type of filter will leave the bacteria absorbed in the air in the activated carbon. It is difficult to completely remove these bacteria by general cleaning methods, so it is necessary to expose them to the sun.  according to the different brands of air purifiers, the number of existing filters is not the same. For example, for some high-end air purifiers, in addition to the front filter screen and filter screen described above, there will also be deodorization filter screen. There are less ways to clean this type of filter screen, mainly clean with clean water. In the cleaning process, low corrosive cleaning fluid can be used. It is necessary to pay attention to not using high corrosive cleaning fluid when cleaning, which will affect the material of filter screen. In addition, it must be dried for a certain time after cleaning If it is put back into the air purifier for use, if it is not completely dry, the deodorization function of the air purifier will be greatly reduced. Moreover, due to the existence of water stains for a long time, the filter screen itself will be greatly damaged. although some of the hardware of the air purifier needs to be replaced and cleaned, some components cannot be maintained by themselves, such as ion generator. This type of accessories are usually built into the interior of the air purifier, so they will not be attacked by various pollutants. Therefore, it is not necessary to clean the air purifier As a result, its efficiency in the process of work is reduced, and even can not be used normally. Therefore, in the process of daily air purifier maintenance, it is better not to dismantle this type of accessories, so as to avoid damage and impact on the use of daily air purifier.