Author: Vanessa Chen 23 December 2024 Category: air filter Media
What is filter media?
Filter media refers to materials used to filter solids, liquids or gases, usually porous materials, including filter paper, filter cloth, filter screen, filter cartridge, filter plate, etc. Different filter media are suitable for different filtering occasions, such as chemical, pharmaceutical, food, water treatment, etc.
What are the types of commonly used filter media?
Natural or composite fiber materials: such as cotton, paper, glass fiber, polyester fiber, etc., are mainly used to filter large particles such as dust, pollen and dust.
Activated carbon: The porous structure and adsorption characteristics of activated carbon can effectively remove odors and harmful gases in the air. It should be noted that the type and quality of activated carbon will affect the filtration efficiency, and it usually needs to be replaced regularly.
Charged fiber: Usually used in electrostatic filters, the filter screen composed of charged fibers is used as the filter medium, which can filter tiny particles such as bacteria, viruses and PM2.5. Electrostatic filters need to be cleaned regularly to maintain the filtration efficiency.
Photocatalyst: It uses ultraviolet rays and photocatalyst reaction to remove pollutants in the air. It is usually composed of a filter with a photocatalyst coating, which is suitable for removing harmful gases and odors.
Paper: It uses paper materials, which are usually used for low-performance cars or motorcycles, and also need to be checked and replaced frequently.
Oil: There is an oil pool inside, which reduces the direct contact between air and filter materials through the lubrication of oil, and is suitable for high-performance cars.
Granular matter: The use of granular materials such as activated carbon and ceramics can filter harmful substances more effectively.
Composite material: It combines a variety of filter materials and technologies, such as adding an activated carbon layer outside the paper filter layer to improve filtration efficiency and reduce resistance.
HEPA: It uses a multi-stage filtration structure, which can effectively remove 99.97% of particles larger than 0.3 microns in the air, and is suitable for air purification systems and high-performance cars.
What factors should be considered when choosing air filter media?
Air flow and filtration area: The pressure drop will be different depending on the structure of the filter; the faster the air flow rate, the greater the pressure drop. It is necessary to select media suitable for flow conditions, reduce pressure drop, improve filter efficiency and protect the environment and human health.
Gas preparation conditions: Determine the media according to factors such as particle content, oil and water content, humidity and temperature in the gas, effectively improve filtration efficiency, and reduce failures such as failure and blow-over.
Qualified and stable supply: The supplier should have the corresponding production qualifications, be able to provide inspection certificates truthfully, and guarantee product quality. Filter media that have not been tested or produced should be carefully selected.
Characteristics of high-quality filter media
1. High-quality filtration characteristics, such as low resistance and high precision;
2. Good physical and mechanical properties, such as wear resistance;
3. Good chemical stability when necessary, corrosion resistance and high temperature resistance;
4. The medium should be easy to clean and regenerate, and safe and reliable to use.
The air quality in production and life is very important. It will affect production efficiency, economic benefits, and human health, so it is necessary to choose the right air filter and media. Mengfei Filtration’s air filter series covers a variety of options including glass fiber, activated carbon, composite materials, HEPA, etc., which can meet all your requirements for air filters. We will become a better filtration company for you.