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Air Filters and Chemical Filtration
Synthetic-Fiber Medium-Efficiency Filter
A durable synthetic-media filter for humid or demanding HVAC service where fiber integrity and stable airflow are priorities.
- Tear-Resistant Synthetic Media
- Humidity-Tolerant Construction
- Stable Mechanical Capture
- Flexible Format Options
Product Introduction
The synthetic-fiber medium-efficiency filter uses a graded nonwoven polyolefin or polyester medium formed as stabilized pockets or rigid pleats. Fiber diameter and layer density change through the media depth so particles are stored progressively rather than concentrated on the entering face. Welded or stitched pocket seams resist tearing, while a supported pleated version uses corrosion-resistant mesh and a sealed frame. The synthetic construction avoids glass-fiber shedding and retains structural strength in humid supply-air systems, food facilities and clean support areas.
Key Features
Hydrophobic fibers retain tensile strength when exposed to humid outdoor or process air.
Welded pocket seams or wire-supported pleats control media movement during fan cycling.
Low-shedding polymer media is suitable where brittle glass fibers are undesirable.
Customer Product Concerns
Synthetic filters are selected when moisture, abrasion or fiber-release concerns make conventional glass media difficult to maintain.
Humid intake air weakens media and causes pockets to sag.Hydrophobic polyester or polyolefin fibers retain strength and dimensional stability at high relative humidity.
Brittle fibers release during filter handling near sensitive processes.Continuous synthetic filaments and bonded nonwoven layers reduce loose-fiber shedding.
Pockets tear along stitch lines after repeated fan cycling.Reinforced seams and controlled pocket geometry distribute tension along the full pocket length.
Surface-loaded media reaches high resistance before using its full depth.A progressive-density fiber profile stores larger particles upstream and finer particles deeper in the medium.
Typical Applications
Food and beverage ventilationHumid-climate air handlersCleanroom preparatory filtrationHospitals and public buildingsIndustrial supply and return-air systems
Technical Parameters
Typical construction ranges for a synthetic-fiber medium-efficiency HVAC filter are shown below.
| Core Material | Progressive-density polyester or polyolefin nonwoven filter media |
|---|---|
| Panel Thickness | 45-100 mm for pleated panels or 25 mm header depth for pocket filters |
| Effective Width | 287-610 mm modular face width |
| Maximum Length | Up to 635 mm pocket depth or 610 mm panel face length |
| Steel Facing Thickness | 0.35-0.60 mm galvanized support mesh or 0.70-1.00 mm header channels |
| Core Density | Approximately 35-85 kg/m³ nominal synthetic-media bulk density |
| Thermal Conductivity | Approximately 0.035-0.045 W/(m·K) for the dry synthetic medium |
| Surface Finish | White or efficiency-color-coded synthetic media with galvanized or molded-plastic framing |
| Joint Type | Ultrasonically welded pockets or wire-supported pleats continuously sealed into the perimeter frame |
| Customization | Available based on the intended application and operating environment. |
Available Options
ISO ePM10, ePM2.5 or ePM1 performancePocket, pleated-panel or compact-cell formatHydrophobic or antimicrobial-treated synthetic mediaPlastic, galvanized or fully incinerable frame
Planning a Synthetic-Fiber Medium-Efficiency Filter specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
