Thermal Bonded Filter Media

G4 Synthetic Filter Media Roll

Key Features:
•EN779 G4 / ISO Coarse High-Efficiency Pre-Filtration (Arrestance ≥ 90%)
•100% Virgin PET Synthetic Fibers (Thermally Bonded & Binder-Free)
•3D Progressive Density Structure for Maximum Dust Holding Capacity
•Flame Retardant Compliance (DIN 53438 F1 / UL 900 Class 2)
•Available in Bulk Rolls, Slits & Precision Cut-to-Size Pads

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Product Overview    

       

         Our G4 Synthetic Filter Media Roll is engineered to deliver high-performance primary filtration for demanding HVAC systems, industrial paint spray booths, and specialized ventilation equipment. Manufactured from 100% virgin Polyethylene Terephthalate (PET) synthetic fibers using an eco-friendly hot-air thermal bonding process, this G4-grade filter media achieves an average dust arrestance exceeding 90% under EN779 standards. Completely binder-free and non-toxic, it combines high particulate holding capacity with low airflow resistance, providing a reliable protective barrier for expensive secondary and HEPA filter units.

        High Efficiency G4 Arrestance & Particle Capture Formulated specifically to meet strict EN779 G4 requirements, this synthetic roll captures fine airborne dust, pollen, soot, and paint mist larger than 5 microns. By trapping heavy particulate loads at the primary stage, it prevents surface blinding in downstream medium and high-efficiency filters, reducing overall maintenance costs and optimizing system energy performance.

        Engineered Progressive Density Matrix The media features a precision multi-layer gradient structure—coarse, open fibers on the air-inlet side transitioning smoothly into an ultra-dense synthetic fiber layer on the air-outlet side. This 3D depth-loading matrix allows dust particles to be distributed evenly throughout the thickness of the media rather than clogging the surface, delivering maximum dust holding capacity (DHC) while maintaining a low initial pressure drop (30-40Pa).

       100% Hot-Air Bonded & Fire Safe Utilizing pure thermal fusion without chemical glues, resins, or solvents, our G4 synthetic rolls guarantee zero toxic volatile organic compound (VOC) off-gassing or unpleasant odors during operation. Impregnated with inherent flame-retardant synthetic fibers, the material satisfies international fire safety standards including DIN 53438 Class F1 and UL 900 Class 2, exhibiting self-extinguishing safety under elevated thermal conditions.

       Moisture Resistant & Dimensional Stability Constructed from 100% hydrophobic PET fibers, the non-woven matrix does not absorb water or support mold, fungus, or bacterial growth. It maintains its structural loftiness, flexibility, and filtration integrity in humid ambient air and under continuous thermal loads up to 100℃


Technical Specifications  

ModelGLM-100GLM-150GLM-200GLM-250GLM-300GLM-350GLM-400
Gram/100150200250300350400
Thickness5mm8-10mm12-15mm18-20mm22-25mm28-30mm35-40mm
Initial   resistance15Pa20Pa28Pa38Pa48Pa58Pa68Pa

Final resistance

(Recommended)

200Pa250Pa250Pa250Pa250Pa250Pa250Pa
Rated   Air Flow2.0m/s1.5m/s1.5m/s1.2m/s1.0m/s0.7m/s0.5m/s
Rated   Air Flow7200   m³/h5400   m³/h5400   m³/h4200   m³/h3500   m³/h2500   m³/h1800m³/h
Thermal   Stability100100100100100100100
Average   Arrestance72%80%88%90%91%92%93%
Dust   holding capacity350g/m2420   g/m2500   g/m2550   g/m2600   g/m2650   g/m2700   g/m2
GradeG2G3G4G4G4G4G4
Standard size1x20m/ 2x20m or according to your   request


Application  Explore where our thermally bonded media is widely utilize 

Unit Coolers in Frozen Food Warehouses.jpgUnit Coolers in Frozen Food Warehouses

Suction-side protective filter media for cold storage unit coolers, trapping ice crystals and cardboard dust to prevent coil frosting


Swine & Livestock Farm Ventilation.jpgSwine & Livestock Farm Ventilation

Specialized bio-security pre-filtration media for swine barns, poultry housing, and livestock facilities to block airborne dust and pathogens


Pre-Filtration for Cleanrooms & Laboratories.jpgPre-Filtration for Cleanrooms & Laboratories

Protective primary pre-filter media safeguarding high-efficiency HEPA filters in pharmaceutical and electronics cleanrooms


Industrial Equipment & Cabinet Ventilation.jpgResidential & Commercial Air Purifier Pre-Filters

Cut-to-size primary filter media rolls used as outer pre-filters in standalone air purifiers and fresh air ventilators


Factory Workshop    

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Contact: Jeremy Liu

Phone: +86-18031877567

E-mail: juxinfilter@gmail.com

Whatsapp:+86 18031877567

Add: No.17 R.D Jingwu,Anping county, Hebei Province,P.R. China

Whatsapp:+86 18031877567

Phone:+86-18031877567

Email:juxinfilter@gmail.com

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