The Function and Filtration Principle of HEPA Filter

With the development of industrial production and the aggravation of environmental pollution, HEPA filters, as an important air purification equipment, have been widely used in various countries.

With its high efficiency filtration performance, large dust capacity and long service life, HEPA filter has become an essential purification equipment for many industries. This article will introduce in detail the filtration principle of HEPA filter and its application in various fields.

Types of HEPA filters

Mini Pleat HEPA Filter	Deep Pleat HEPA Filter	V Bank HEPA Filter
Box Type V Bank HEPA Filter	Side Gel Seal HEPA Filter	Top Gel Seal HEPA Filter

Working Principle of HEPA Filters

Its working principle mainly includes the following aspects:

1. Filtration media

HEPA filters use high-efficiency filtration materials as filtration media, such as PP, glass fiber and so on. These filter materials have a high filtration efficiency and a large filtration area, which can effectively capture the fine particles in the air.

2. Inertial filtration

When the dusty airflow passes through the HEPA filter, the large particles therein, due to inertia, will directly hit the surface of the filter media and thus be captured by the filter media.

3. Diffusion filtration

When small particulate matter passes through the filtration media, it is affected by Brownian motion and will form a uniform distribution on the surface of the media.

4. Electrostatic adsorption

Part of the HEPA filter has the function of electrostatic adsorption, which makes the particles passing through the filter electrically charged, thus increasing the adsorption force between it and the filter media, and further improving the filtration effect.

Application fields of HEPA filters

• Industrial field 

HEPA filters are widely used in electronics, medicine, food and other industries to purify the air in production workshops, clean rooms and other places to ensure that the product quality and production environment meet the high standard requirements.

• Environmental protection field

In thermal power plants, iron and steel mills, chemical plants and other large emitters, HEPA filters can effectively remove particles in the exhaust gas, reduce the concentration of air pollutants emitted, and reduce environmental pollution.

• Agricultural field

HEPA filters have a wide range of applications in the aquaculture industry, which can effectively remove odors, viruses and bacteria in the aquaculture house, improve the aquaculture environment and enhance the aquaculture efficiency.

• Home field

HEPA filters are also widely used in homes and commercial buildings, such as air purifiers and fresh air systems, which can effectively remove indoor pollutants and improve air quality.

Conclusion

As an important air purification equipment, HEPA filters play an important role in various industries. Understanding its filtration principle and application areas will help us to better select and use HEPA filters and make greater contributions to environmental protection and industrial development.

About SNYLI

Snyli Environmental Technology (Shandong) Co., Ltd has the strength and experience in R&D and production to provide a wide range of air filtration products to our customers. Since SNYLI has been engaged in foreign trade export, we have been constantly praised by customers from various countries, and we are always proud of the quality products we have provided to our customers. 

In the future, we will always keep our original intention, continue to develop and innovate, and provide even better products and services to customers from all over the world.