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Medium Efficiency Filter Fabric

Home Filter Material Filter FabricMedium Efficiency Filter Fabric

Medium Efficiency Filter Fabric – Low Pressure Drop, High Dust Holding Capacity & Energy Efficient

Medium efficiency filter fabric serves as a core product in HVAC systems, playing a crucial role in protecting and extending the service life of subsequent HEPA filters. our medium efficiency filter fabric is suitable for various environmental requirements, including high humidity, high temperature, and sticky dust. We offer a variety of medium efficiency filter fabrics, such as non-woven bag filter material, non-woven filter cotton, glass fiber flame retardant filter cotton, and mesh-covered cotton, to meet complex working conditions with features of low cost, long life, and high efficiency. For many years, PLM Filter has provided excellent air quality and energy-saving solutions to international partners and comprehensive production support services for OEM and aftermarket manufacturers.

Product Catalogue Order Information

Various types of medium efficiency filter fabric and medium efficiency filters

High Air Permeability
Low Pressure Drop
High Dust Holding Capacity
Long Service Life
High Temperature Resistance
Chemical Resistance

Material Treatment
Types
Application
Common Specifications

Material Treatment

Flame Retardant Modification

Add flame retardants to inhibit the oxidation reaction that leads to combustion.

Waterproof Treatment

This function is achieved by using waterproof fibers or waterproof coatings.

Antimicrobial Treatment

Antimicrobial agents are applied either as a surface treatment or as a component within the fibers.

Adsorption Treatment

Activated carbon is the preferred adsorbent for filter media.

Types

Non-Woven Bag Filter Material

Material: Polypropylene fiber, other fibers, spunbond fabric
Process: hot melt technology.
Features: High tensile strength, low resistance, dense and durable
Filtration grade: F5, F6, F7, F8, F9
Application equipment: Panel, Bag Filters
Application field: Suitable for air conditioning applications such as HVAC systems in commercial buildings, warehouses, schools, laboratories, etc.; Used in automotive paint booths, furniture paint booths, automotive spray booths, furniture spray booths, etc., as paint booth filter cotton.

Medium Efficiency Non-Woven Filter Cotton

Material: Polyester fiber
Process: Needle punching
Features: Stable quality, large dust holding capacity, strong moisture resistance, long service life, economical and durable
Filtration grade: F5, F6, F7, F8, F9
Application equipment: Panel, bag filter
Application field: Ventilation and air conditioning systems in spray painting industry, electroplating industry, HVAC industry, home appliance industry, automotive industry, motorcycle manufacturing, and various air purification fields.

Glass Fiber Flame Retardant Filter Cotton

Material: Glass long fiber
Process: Made by uniformly overlapping in a non-woven manner, with the air outlet surface specially treated to solve the fiber shedding problem of ordinary high-temperature resistant fiberglass cotton.
Features: Can be used for a long time at 240 °C without aging, with excellent dimensional stability, good chemical resistance, strong moisture resistance, low hygroscopicity, and long service life.
Filtration grade: F5, capable of filtering ≥ 1 μm particles
Application field: Widely used in chemical plants, thermal power plants, carbon black plants, cement plants, lime plants, as well as high flue and hot air filtration in electric arc furnaces, oil boilers, and incinerators, effectively removing dust and resisting chemical corrosion from harmful fumes.

Mesh-Covered Cotton

Filtration grade: F5, F6, F7, F8, F9
Material: Polyester fiber + iron mesh
Process: Made of polyester fiber filter material, using fibers with different melting points inside and outside arranged in a non-directional three-dimensional structure, and manufactured through processes such as needle punching, bonding, and hot melting.
Features: The product has multiple properties such as tight fiber bonding, resistance to breakage, non-shedding, corrosion resistance, wear resistance, elastic recovery, and long lifespan.
Application equipment: Used for cardboard frame, aluminum frame, galvanized frame, and other metal filter materials; automotive air conditioning filters.
Application field: Automotive, HVAC system pre-filtration

Typical HVAC System and Its Application

To ensure proper protection of people's health, air filters in HVAC systems need to operate at higher efficiency. Therefore, it is particularly important that filters at all levels and their filter materials comply with relevant standards and guidelines in this regard. The filters and their materials used in the system must ensure that the levels of indoor dust, bacteria, fungi, and biological components do not exceed those in the outdoor air.

To achieve the required indoor air quality, our multi-stage filter material solutions have been developed. Regarding medium efficiency filter fabric, we have multiple products for different application environments. As the medium efficiency filtration stage in HVAC systems, it is mainly used to remove 1–5 μm dust particles and various suspended matters.

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Common Specifications

Table 1: Common Specifications of Medium Efficiency Filter Fabric
Code Number	Type	Filtration Level	Weight Efficiency (%)	Air Velocity (m/s)	Initial Efficiency (%)	Initial Resistance (Pa)	Dust Holding Capacity (g/m²)
LMFM-F5	Mesh-covered cotton	F5	92	0.4	< 20	20	138
LMFM-F6	Mesh-covered cotton	F6	96	0.3	< 30	30	138
LMFM-F7	Mesh-covered cotton	F7	97	0.15	< 55	40	142
LMFM-F8	Mesh-covered cotton	F8	98	0.1	< 80	50	142
LMFM-F9	Mesh-covered cotton	F9	99	0.1	< 90	55	150
LMDS-A-F5	Non-woven bag filter material	F5	85	–	< 20	50	150
LMDS-A-F6	Non-woven bag filter material	F6	90	–	< 30	45	140
LMDS-A-F7	Non-woven bag filter material	F7	95	–	< 55	45	120
LMDS-A-F8	Non-woven bag filter material	F8	99	–	< 80	50	100
Note: The above are some common specifications and parameters. If you do not find a suitable product, you can contact our sales representative for detailed inquiries. Contact Us

Professional Advice

When selecting filter material for medium efficiency filters, multiple factors need to be considered to ensure their filtration efficiency and applicability. To ensure you can quickly choose the most suitable medium efficiency filter material, our team provides you with full-process technical guidance and recommends suitable products based on your specific needs.

Firstly, the filtration grade of medium efficiency filter material required varies with different working environments. For example, in a general environment, conventional medium efficiency filter fabric can be used; Hospitals and laboratories with high cleanliness requirements need ultra-fine fiber medium efficiency filter fabric.
In environments with high dust concentrations, choose more durable and higher efficiency filter fabric, such as multi-layer composite filter cloth, to extend service life and improve filtration efficiency. Conversely, single-layer or economical filter cloth can be used.
In environments with high humidity, high temperature, or corrosive chemicals, medium efficiency filter fabric with special treatments, such as waterproof, flame retardant, and corrosion-resistant properties, is required.

We are committed to providing you with the most professional service and the highest quality products. We look forward to cooperating with you. If you have any questions or needs, please feel free to contact us.

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Customize Your Solution

PLM Filter provides customized solutions for primary, medium, and high-efficiency filter manufacturers (including sample testing and customization) to meet specific customer needs.

Expert Consultation

Production Process & Product Recommendations

High-efficiency filter on a gray background

Primary, Medium & High-Efficiency Filter Production Process

Providing various filter fabric, metal mesh and hot melt adhesive for primary, medium and high-efficiency filter production.