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The introduction of HEPA

Views:0     Author:Site Editor     Publish Time: 2021-09-22      Origin:Site

  1. What material is HEPA made of?

There are many kinds of materials that make up HEPA, which can be divided into PP (polypropylene) high-efficiency filter paper, PET filter paper, PP and PET composite high-efficiency filter paper, and glass fiber high-efficiency filter paper. Among them, PP (polypropylene) is paper, so generally it cannot be washed with water. The other part of the HEPA filter is made of PET or PTFE, but the efficiency of PET is very low.

HEPA Filter

 

PP high-efficiency filter paper:

It is a new type of filter material made of polypropylene by a special hot-melt method. The product is acid and alkali resistant, corrosion resistant, high melting point, stable performance, non-toxic, odorless, uniform distribution, low resistance, high efficiency, High strength, environmental protection and other characteristics.

 PET filter paper:

It is made by melt-blown polyester resin and other materials. It has high hardness, good stiffness, corrosion resistance, high temperature resistance, stable performance, and is commonly used in household appliances such as sweepers and vacuum cleaners that require low filtration accuracy or large-scale cleaning Above the machine.

Composite filter paper (PP and PET):

It is composite filter paper, simply melt-blown a layer of PP, and then melt-blown a layer of PET, so that it combines the advantages of PP and PET: easy to shape, filtration accuracy can be guaranteed; It not only has stiffness, but also guarantees high-precision filtering effect.

Glass fiber high-efficiency filter paper:

It is glass fiber high-efficiency filter paper is a kind of filter paper with very high gold content, which has been used in the nuclear industry before. Some foreign big brands of purifiers, such as Aulange, IQAir, etc., all use aluminum frames or other metal shells to fix the filter paper and seal it so as not to damage it and affect the filtering effect.

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