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How should the air purifier be cleaned? A good air purifier can effectively remove dust, pet dandruff and other particles that we can't see with the naked eye in the air,It can also remove harmful gases such as formaldehyde, benzene and second-hand smoke in the air, as well as bacteria, viruses and other microorganisms in the air,The air purifier of negative ions can also actively release negative ions,Promote human metabolism,The core component of the air purifier is the filter layer.Air purifier filter generally has three or four layers.The first layer is a pre-filter,The materials selected by each brand of this layer of filter are not the same,But its role is the same,Mainly to remove dust and hair with large particles.The second layer is an efficient HEPA filter,This layer of filter mainly filters allergens such as mites and pollen in the air,The filter diameter is 0.Inhaled particulate matter from 3 microns to 20 microns.The dust filter or dust collecting plate in the air purifier should be cleaned fr
High School, chemistry, filtration or filtration belong to decompression filtration. it is not suitable for the separation of rubber-like precipitation and water. Please answer in detail. thank you! (23:51:14) Two, decompression filtrationPrinciple: the pumping pump decompresses the suction bottle, resulting in a difference in pressure between the bottle and the liquid level of the brandfunnel, thus speeding up the filtration speed.Operation steps: 1. install the instrument, put the filter paper into the bringer funnel, moisten the filter paper with distilled water, slightly open the faucet, and draw the filter paper to cling to the funnel porcelain board.2. transfer the solution first by tilting method, open the large faucet, and transfer the precipitation when the solution flows fast.3. when the liquid level in the suction filter bottle reaches the position of the branch pipe, unplug the rubber tube on the suction filter bottle and pour out the solution from the upper mouth of the suction filter