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What indicators should be paid attention to when choosing a suitable air purifier? The harmful substances that need to be filtered in the air are mainly gas particles and solid particles,At present, China's main concern is to remove pm2.5 are gas particles.There are currently five filtration methods for solid particles,The screen effect, inertia effect, interception effect, diffusion effect and electrostatic effect are respectively.Its brief explanation is shown in the following table.The filter media gap is smaller than the particle diameter,Dust less than 1 m does not move with air flow,But because of the impact of the air molecules to do the 'brown movement ',The impact filter fibers are captured.The smaller the particles,The more intense Brown is,The better the filtering effect.The electrostatic field is used to ionize the gas so that the dust particles are charged to the dust collection method on the electrode,But ozone is easy to produce,Causing sec
With the water purifier, is it necessary to install the front filter again? The water purifier belongs to fine filtration, and the front filter belongs to the front-end filtration of tap water. it is precisely because of the first filtering procedure that the water purifier can purify the water source more finely, therefore, it is still necessary, like I have installed Annette's front filter myself, and now I have more peace of mind to drink water.
