Pocket Bag Air Filter

Pocket bag Medium Efficiency air filter is usually designed into a bag-like structure. This type of filter is mainly used for medium-efficiency particle filtration. The filter material of the bag-type medium-efficiency filter is installed in a bag-shaped frame, usually using synthetic fiber or glass fiber material. This bag-like structure increases the filtration surface area and improves filtration efficiency. Regular replacement of bag filters is key to maintaining their performance. The life of the filter depends on the using environment and the design.

Features: Easy to install, large filtration area, low resistance, high structural strength, solid support frame
Application areas: General ventilation and air conditioning system pre-filtration, pharmaceutical factories, hospitals, electronic factories, food factories and other industrial purification

Structure type: Bag filter
Efficiency: G3 G4 M5 M6 F7 F8 F9 (Under EN779)
ISO16890 related requirements
Recommended final resistance: 600Pa
Maximum operating temperature: 90℃ for ordinary models, 200℃ for high-temperature resistant models
Maximum operating humidity: 90%RH

Material table:
Outer frame material: aluminum profiles, galvanized iron sheets, plastic profiles
Optional thickness: 20mm, 25mm, 45mm
Inner frame material: galvanized iron sheets
Filter material: chemical fiber, glass fiber, non-woven fabric, HV-nano wave, Vildeon-P15
Sealing gasket: CR, EVA, EPDM, etc.

Nantong Henka Environment Solutions Co.,Ltd.

Nantong Henka Environment Solutions Co., Ltd was founded in 2004. Henka is one of the famous and professional air filter manufacturers for air purifiers, air cleaners, and ventilation systems. Our air filters include HEPA, VOC removal filters, Formaldehyde removal filters, Activated Carbon filters, Odor removal filters, HVAC filters, i-Hepa ventilation purification devices, and IFD purification devices.
Henka is the customized air filter supplier for the famous brands of air purifiers and air cleaners in the North American market and China market. Henka provides not only air filters but also professional air purification solutions.
Henka is located in Haimen City, Jiangsu Province, which is only 120 kilometers away from Shanghai. Henka has ISO14001:2015, ISO9001:2015 and ISO45001:2018 certifications, efficiency and air resistance test system for filter media, noise test lab, 30 cubic meters test room for formaldehyde and VOC remove efficiency, CADR test room for air purifier. ASHRAE 52.2 is used in testing air filters.
With more than 20 years of experience working with a US engineering team, we can design the product based on the specifications, drawings, samples, or even ideas from our customers, and provide professional air filtration solutions to our customers.

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Pocket Bag Air Filter Industry knowledge

Why do Pocket Bag Air Filter have low resistance?

Pocket Bag Air Filters have low resistance for several reasons, which can be beneficial in various applications where maintaining airflow is crucial. Here's why they typically exhibit low resistance:

1. Large Surface Area: Pocket bag filters often have a large surface area for the volume of air they need to filter. This allows for more air to pass through the filter without a significant increase in resistance.

2. Depth Filtration: Unlike surface filters, pocket bag filters use depth filtration, where the dust is collected throughout the depth of the filter material, not just on the surface. This can lead to a more efficient use of the filter material and lower resistance.

3. Flow Design: The design of the pocket bag filter housing allows for a smooth flow of air, reducing turbulence and resistance. The bags are usually arranged in a way that air can flow evenly through them.

4. Filter Media: The filter media used in pocket bag filters is chosen for its ability to provide high filtration efficiency with low resistance. Modern filter media can be very efficient while still allowing air to pass through with minimal resistance.

5. Cleanable and Reusable: Pocket bag filters can be cleaned and reused, which means they can be restored to near their original efficiency, maintaining low resistance over time.

6. Pre-Filters: Often, pocket bag filters are used in conjunction with pre-filters that capture larger particles, reducing the load on the pocket bags and keeping their resistance low.

7. Airflow Management: The system can be designed to manage airflow in a way that minimizes resistance, such as by controlling the velocity of the air passing through the filters.

8. Regular Maintenance: Regular maintenance, including cleaning or replacing the filters, helps to keep the resistance low by preventing the accumulation of dust and debris that would otherwise increase resistance.

9. Optimized Filter Spacing: The spacing between the pocket bags can be optimized to allow for unobstructed airflow, which reduces resistance.

10. System Design: The overall design of the air filtration system, including the use of fans and blowers, can be optimized to work efficiently with pocket bag filters, contributing to their low resistance characteristic.

Why do Pocket Bag Air Filters typically have larger surface areas?

Pocket Bag Air Filters usually have a larger surface area, mainly due to the following reasons:

1. Improved efficiency: A larger surface area improves filtration efficiency because more particles are captured as they pass through the filter.

2. Air flow dispersion: A larger surface area helps disperse air flow, reducing turbulence and resistance when air flows, thereby improving filtration effect.

3. Maintenance intervals: A larger filter surface area means the filter can last longer without replacement because each filter bag can capture more particles.

4. Cost-Effectiveness: Although a single filter bag has a larger surface area, the entire filtration system may require fewer filter bags, thus reducing material and installation costs.

5. Design flexibility: The design of pocket bagged filters allows engineers to adjust the size and number of filter bags based on specific application needs to achieve the best surface area to volume ratio.

6. Adaptability: The larger surface area allows the bag filter to adapt to different airflow rates and handle particles of different sizes, increasing its applicability in a variety of applications.

7. Extended service life: Larger surface area can extend the service life of filter bags because each filter bag can hold more particles, thus reducing the frequency of replacement.

8. Optimize space utilization: In a limited space, by increasing the surface area of the filter bag, the available space can be maximized and the efficiency of the entire filtration system can be improved.

9. Reduce energy consumption: A larger surface area helps reduce the overall energy consumption of the system because the resistance of air passing through the filter is lower, thus reducing the operating load of equipment such as fans.

10. Easy to clean and maintain: Larger surface area makes cleaning and maintenance tasks more efficient because each filter bag can handle more air flow, reducing the frequency of cleaning and replacement.