What about HEPA filters?
With the gradual serious environmental pollution, many consumers’ environmental awareness continues to strengthen, the problem of air pollution has become a matter of great concern. In order to improve air quality, many consumers will choose to use filter equipment. However, there are many types of filter equipment, among which the HEPA filter is more popular among consumers.
In fact, HEPA filter is mainly composed of ultrafine polypropylene fiber filter paper or glass fiber filter paper, non-woven fabric, hot melt adhesive, sealant, outer frame material and so on. The glass fiber filter paper is produced by a variety of glass fiber of different thickness and length after special treatment. The main characteristics of this material are high temperature resistance, high efficiency, large dust capacity, good stability, long service time and so on.
But with the development of science and technology, (HEPA air filter manufacturers) the emergence of new chemical fiber filter materials to gradually replace the chemical fiber filter materials. But there are many occasions with high cleaning requirements, the main application is still glass fiber filter paper, that is, high temperature HEPA air filter.
The main working principle of HEPA air filter is that dust particles in the air carry out inertial motion or irregular Brownian motion along with the air flow. When moving under the action of some force, the particles will collide with other obstacles, and the gravitational force on the surface of the particles will make it stick to the obstacles. This is the process by which air dust is adsorbed.
When the dust particles pass through the filter, the filter paper in the filter will form numerous barriers to the fibers, adhere the suspended matter and microorganisms to the surface of the fiber filter material, and the clean air after filtration will pass through smoothly.
This filter equipment has been widely used in many fields, such as: ventilation engineering, hospital operating room and asepsis room, food factory, pharmaceutical factory, central air conditioning, air purifier and so on. There are also some occasions with strict requirements on air cleanliness, this HEPA filter is indispensable.
HEPA filters can remove at least 97.00% airborne particulates with a diameter of 0.3 micrometer (μm). Ordinary filter equipment for this diameter of air dust is very difficult to deal with.