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Do you know the working principle of primary, medium and high efficiency air filters?

Time: 2022-02-23

Looking for an air manufacturer of primary, medium and high efficiency air filters, it is recommended that Shanghai Sanfan Industrial Co., Ltd. is one of the earliest professional companies engaged in the design, construction and research and production of air purification equipment for central air conditioning. , production, sales and service” as one, to provide our customers with high-quality clean technical services and stable quality, affordable air purification equipment, the company’s stable product quality and professional and meticulous after-sales service has won the electronic, mechanical, Trusted by food, pharmaceutical, coating, hospital and other enterprises. The company’s business is divided into engineering division and air purification equipment division. The company’s products are divided into primary efficiency air filters, medium efficiency air filters, sub-high efficiency air filters,high efficiency air filters, ultra-high efficiency air filters, high temperature or high efficiency air filters. High-humidity high-efficiency air filter, antibacterial type high-efficiency air filter without partition, powder recovery filter and air shower room, transfer window,FFU air filter unit, clean workbench, high-efficiency air outlet and other air purification equipment.


How Filters Filter Air?

General air purification equipment to filter air is roughly divided into the following methods and steps.

1.) Multiple filters; prevent dust and germs in the air from entering the room. Multiple activated carbon filters can effectively intercept dust and germs, filter the air, and ensure that the air entering the room is clean.

2.) Titanium oxide sterilization; degrades the pollution of organic toxic gases such as formaldehyde and benzene in the indoor air, and nano-scale titanium dioxide is activated by ultraviolet light to filter the air to effectively degrade the radioactive pollution of organic toxic gases such as formaldehyde and benzene in the air.

3.) Negative ion oxygenation: increase the oxygen in the indoor air to an appropriate amount and keep the content stable. The negative ion generator oxygenates the indoor air to ensure that the air entering the home maintains a sufficient amount of oxygen and is full of vitality, and strengthens the filtered air.

4.) PTC ceramic heating, heating the indoor air to a comfortable temperature PTC ceramic heating sheet assists the preheating of the fresh air entering the room in winter, and appropriately increases the indoor temperature, thereby filtering the air and making the home warm and comfortable.

5.) Ultraviolet light sterilization can effectively kill the epidemic viruses and bacteria in the air. The ultraviolet light source can effectively kill the epidemic viruses and bacteria in the air, so that people can stay away from the source of infection, filter the air, and protect the health of the whole family. The filter is an indispensable device on the conveying medium pipeline. It is usually installed at the inlet end of the pressure reducing valve, pressure relief valve, water level valve or other equipment to eliminate impurities in the medium and protect the normal operation of the valve and equipment. use. When the fluid enters the filter cartridge with a certain size of filter, the impurities are blocked, and the clean filtrate is discharged from the filter outlet. When cleaning is required, just take out the detachable filter cartridge and reload it after processing. Therefore, it is extremely convenient to use and maintain.


There are five main functions of the filter layer of the filter to trap particles:

1.) Intercepting effect: When a particle of a certain size moves to the vicinity of the fiber surface, the distance from its centerline to the fiber surface is less than the particle radius, and the dust particles will be intercepted by the filter fiber and deposited.

2.) Inertial effect: When the mass of the particles is large or the speed is large, they collide on the surface of the fiber due to inertia and deposit.

3.) Diffusion effect: particles with small particle size have strong Brownian motion and are easy to collide with the fiber surface.

4.) Gravity effect: When the particles pass through the fiber layer, they are deposited on the fibers due to gravity sedimentation.

5.) Electrostatic effect: Either fibers or particles may be charged, resulting in an electrostatic effect that attracts particles and attracts particles to the surface of the fiber.

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