Product Overview
High Dust Holding Glass Fiber Bag Media is a premium filtration material specifically developed to address the operational challenges of commercial and industrial air handling systems where extended service intervals and consistent performance are critical. This media is manufactured using a specialized melt-blown process that produces ultra-fine glass fibers arranged in a graduated density structure. The unique fiber layering creates a depth-loading filtration mechanism, allowing particles to be captured throughout the entire thickness of the media rather than merely on the surface. This design principle directly contributes to the superior dust holding capacity that distinguishes this product from conventional glass fiber media.
A significant advancement incorporated into this MERV rated glass fiber media is the bonded chemical fiber scrim layer applied to the air-entering surface. This pre-filter layer serves a dual purpose: it captures larger particles before they reach the fine glass fiber substrate, thereby preserving the depth-loading capacity of the primary filtration zone, and it provides structural reinforcement that prevents media distortion during high airflow conditions. The combination of graduated fiber density and protective scrim results in a filtration material that maintains low initial pressure drop while delivering exceptional contaminant storage volume.
EfficiencyGrade (EN779:2012) | M5 | M6 | F7 | F8 | F9 |
@14cm/s，0.4μm | 30±10% | 35±10% | 55±10% | 75±10% | 85±10% |
Pressure Drop @14 cm/s | ≤35Pa | ≤45Pa | ≤70Pa | ≤110Pa | ≤140Pa |
| Basis Weight | 80±5g/㎡ | 80±5g/㎡ | 75±5g/㎡ | 80±5g/㎡ | 80±5g/㎡ |
Thickness @500 Pa | 4.0±1.0mm | 4.0±1.0mm | 3.0±1.0mm | 3.0±1.0mm | 3.0±1.0mm |
Colour (Customizable) | Dark Yellow | Orange | Light Purple | Light Yellow | Light Yellow |
| Width | 695 mm, or customized according to customer requirements. | ||||
Product Features
High Dust Holding Glass Fiber Bag Media delivers a comprehensive set of performance benefits:
Extended Service Intervals. The depth-loading fiber structure combined with the pre-filter scrim layer enables this media to hold significantly more dust than standard glass fiber products, reducing replacement frequency and labor costs.
Low Initial Resistance. Despite its high dust holding capacity, the media maintains remarkably low initial pressure drop, contributing to fan energy savings over the entire service life.
Graduated Density Design. The fiber diameter increases progressively from the air-exit side to the air-entering side, allowing particles of varying sizes to be captured at optimal depths within the media structure.
Stable Efficiency Throughout Life. Unlike surface-loading media that lose efficiency as dust accumulates, this depth-loading material maintains steady particle capture rates from installation to final pressure drop.
Moisture and Chemical Resistance. The glass fiber composition resists degradation from humidity and mild chemical exposure, making it suitable for diverse environmental conditions.
Product Applications
Where High Dust Holding Glass Fiber Bag Media provides optimal filtration performance and operational value:
High Dust Holding Glass Fiber Bag Media is specified across a wide range of sectors:
Commercial Office Buildings – This pocket bag filter media delivers the balance of efficiency and energy performance required for year-round HVAC operation, with extended service intervals reducing maintenance disruptions.
Healthcare Facilities – In hospitals and clinics, this high dust holding capacity media supports infection control by capturing airborne bacteria-carrying particles while maintaining the airflow volumes necessary for patient comfort.
Data Centers – Critical cooling systems benefit from the media's stable efficiency, ensuring that particle accumulation does not compromise heat exchanger performance or electronic component reliability.
Manufacturing Plants – Industrial facilities with moderate dust loads utilize this media for ventilation systems, where its high dust holding capacity reduces filter change frequency in hard-to-access locations.
