All Categories

What is a HEPA filter?

2022-09-09 Page view : 9 views

The so-called HEPA filter is synonymous with high-efficiency filtration equipment, especially the HEPA high-efficiency filter is enthusiastically sought after by everyone, especially in various industrial industries, this equipment is indispensable!

As we all know, with the rapid development of modern industry, the application of various filtration equipment has been very extensive. With the serious environmental pollution, everyone’s environmental awareness has been continuously strengthened, and air quality has become the focus of attention all over the world. It can be seen that the application of equipment such as HEPA high-efficiency filters is not unreasonable!

This HEPA high-efficiency filter is mainly composed of ultra-fine polypropylene (PP) fiber filter paper or glass fiber filter paper (high-efficiency filtration), non-woven fabric (coarse-efficiency filtration), hot melt adhesive, sealant, outer frame materials such as paper shell edges, etc. material composition. Among them, the glass fiber filter paper is produced by various glass fibers with different thickness and length through special processing technology. It is characterized by high temperature resistance, high efficiency, large dust holding capacity, good stability and long life.

Many people may not know that most of the high-efficiency filters we used in the early days used glass fiber filter paper, but with the development of technology and the emergence of new chemical fiber filter materials, these materials were gradually replaced by chemical fiber filter materials. However, in high-efficiency filtration, especially for the occasions with stricter cleanliness requirements, glass fiber filters are still widely used, and our HEPA high-efficiency filter is one of them.

The filter material used in these devices presents a three-dimensional effect. The diameter of the monofilament is 2-18um. The special mesh structure reduces the filtration resistance and increases the dust holding capacity. It can be said that it is the preferred filter material for various types of filter equipment!

Next, let’s take a look at the filtration principle of the HEPA filter. The dust particles in the air move with the inertial motion or irregular Brownian motion of the airflow, and are moved by a certain field force. When the moving particle hits other obstacles, the attraction between the particle and the surface of the obstacle makes it stick to the obstacle, which is the process of the pollutant being adsorbed.

In addition, when suspended particles, microorganisms, etc. in the air flow through the equipment with the gas, since the filter paper used in the HEPA high-efficiency filter is composed of messy interwoven fibers, these messy interwoven fibers also form particles. There are countless barriers, suspended particles, microorganisms, etc. are filtered to the surface of the fiber material, and the space between the fibers allows the airflow to pass smoothly. In this way, while the air is filtered, the service life of the equipment is also well guaranteed!

This equipment with stable filtration efficiency, small resistance, large dust holding capacity, convenient replacement and strong adaptability has been used in many fields. Currently, it is used in ventilation engineering, hospital operating rooms and sterile rooms, food factories, pharmaceutical factories, Central air conditioners, air purifiers and occasions with strict requirements on air cleanliness, this HEPA high-efficiency filter is indispensable.

We also have other high efficiency filters,for example,the v bank hepa filter,etc.If you need to contact the manufacturer.