KeLing Purification Technology Company Limited 

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What are HEPA filters made of?

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China KeLing Purification Technology Company certification
China KeLing Purification Technology Company certification
Customer Reviews
Keling had successfully supplied us following products on 25 Oct.2017 against PO NO.M170807; Their supplied Air Filters have been working satisfactorily since installation.We are satisfied with their products.

—— SIMPOR PHARMA

Since we do coopertae with them, they always offer good quality and keep the delivery on time to us, we do appreicated for their kind support !

—— Nasir

This is to certify that we bought U type air shower tunnel, Air Shower and HEPA filter, Secondary air filter ,perfilter for our project from KeLing Purification Technology Co. Ltd, 3C01 Tian Feng Commerce Square, Mid Building, No. 133, Baiyun AV, Baiyun Disctrict , Guangzhou , GuangDong, China against Contract No: 2014/4119005942 in October 22, 201

—— IATEC,Argentina

Product arrived faster than expected and they sent something special in addition to what I ordered. Nice people and fast service!

—— Mohammed Saad

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What are HEPA filters made of?

hepa filter

 

HEPA filters, or high-efficiency particulate air filters, are defined by how well they have been rated to filter particles, not by how they are made. To meet the HEPA standard, a filter is estimated to remove 99.97 percent of particles that are 0.3 microns (or micrometers) in size from the air that passes through them, though this means that particles smaller than 0.3 microns can escape the HEPA filter.

 

In practice, HEPA filters are made from a variety of materials, including “coarse glass fibers, coated animal hair, vegetable fibers, synthetic fibers (such as polyester or nylon), synthetic foams, metallic wools, or expanded metals and foils,” according to the EPA. These fibers are tangled together randomly and compressed into paper-like sheets. The sheets are pleated to increase the surface area that the air passes through, and mounted onto a frame made of cardboard, plastic, wood or metal. Manufacturers might add other elements to a HEPA filter, such as a pre-filter to screen out larger particles, activated carbon to help remove odors and gases or a chemical treatment to make particles stick to the fibers.

Pub Time : 2020-11-25 11:17:30 >> News list
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