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
Excuse me, the mobile phase filter for high-performance liquid phase is full of dust on the sand core filter device. how should it be cleaned and maintained? 5% dilute nitric acid after soaking for the night, the filter that cleans the glass with ultra-pure water is generally soaked with nitric acid;The stainless steel is directly ultrasonic.