Product Overview

Liyang Air Filter Bag is a bag-type air filtration material for ventilation and air-conditioning systems as well as dust collection systems. It is mainly used to block dust particles and suspended impurities in the air, and is suitable for general ventilation, central air-conditioning, clean production and industrial dust removal. The product uses a bag structure and can be used with galvanized sheet, aluminum sheet, aluminum alloy profile and other outer frames. It is a widely used product type among medium-efficiency air filters. The filter bag is made from multilayer polyester fiber composite media. Through a gradient structure and bag-type filtration space, it provides staged interception and depth filtration. Compared with ordinary filter bags, Liyang Air Filter Bag offers a large filtration area, low resistance, high dust-holding capacity, uniform air supply and long service life, making it suitable for pharmaceutical, hospital, electronics, food, spray booth and dusty workshop environments with air filtration requirements.

Product Features

• Bag structure with large filtration area: The multi-bag structure increases effective filtration area and improves air passing efficiency.
• Multilayer composite media for staged filtration: Made from gradient multilayer polyester fibers to intercept and adsorb airborne dust particles in stages.
• Low resistance and high dust-holding capacity: The media has good air permeability, low filtration resistance and high dust-holding capacity for continuous operation.
• Spacer structure for more uniform airflow: Internal spacers reduce bag-to-bag adhesion, improve effective bag area and help airflow distribute more evenly.
• Welded side seams for strong construction: Welded seams provide good bonding strength and help reduce air leakage and rupture risks.
• Color distinction for easy identification: Different colors can be used to distinguish specifications or grades for easier installation, maintenance and replacement management.

Specifications

Item	Detail
Product Name	Air Filter Bag
Category	Bag-type dust collection air filter material
Product Type	Bag-type air filter material / medium-efficiency filter bag
Main Material	Multilayer polyester fiber composite filter media
Structure	Bag structure, compatible with metal outer frames
Compatible Frames	Galvanized sheet, aluminum sheet, aluminum alloy profiles, etc.
Filtered Media	Airborne dust particles, suspended impurities and general pollutants
Suggested Replacement Cycle	Generally 3 to 6 months, depending on the operating environment and running conditions
Product Features	Low resistance, high dust holding, uniform air supply, long service life, cleanable and maintainable
Dimensions	Customizable according to customer equipment dimensions and filtration grade requirements

* Filtration efficiency grade, dimensions, bag count, frame material and color can be customized according to customer equipment and operating environment. Please contact sales for details.

Structural Advantages

This product uses multilayer polyester fiber composite media and a bag-type filtration structure. The gradient fiber layers provide staged interception for dust particles of different sizes, while the bag space increases filtration area and dust-holding capacity. Internal spacers help keep the bags open and support more uniform airflow distribution. When paired with a metal outer frame, it can be used in ventilation and air-conditioning systems or industrial dust collection equipment while balancing filtration efficiency, operating resistance and maintenance convenience.

Applications

Suitable for pharmaceutical plants, hospitals, cosmetics facilities, semiconductor electronics, precision machinery, food processing, spray booths, dusty workshops, central air-conditioning systems, ventilation systems and various industrial dust collection systems. It is especially suitable for air filtration scenarios requiring medium-efficiency filtration, stable air supply, reduced dust contamination and longer equipment maintenance intervals.

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