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Air Filters and Chemical Filtration
High-Capacity HEPA Filter
A deep-pleat HEPA filter with a large glass-microfibre media pack designed for long loading intervals in cleanroom supply or exhaust air systems.
- Deep-Pleat Media Pack
- High Dust-Holding Capacity
- Rigid Metal Frame
- Long Service Interval
Product Introduction
The high-capacity HEPA filter uses a deep accordion-folded glass-microfibre pack separated by corrugated aluminium foils. The separators preserve open flow channels through the full filter depth and allow a greater media quantity than a shallow cleanroom panel. The pack is bonded continuously into a galvanized-steel or stainless-steel frame with polyurethane sealant. This construction suits central air handlers and containment housings where particulate loading, robust handling and long replacement intervals are more important than an ultra-shallow profile.
Key Features
Corrugated aluminium separators keep adjacent pleats apart and guide air evenly through the filter depth.
A metal box frame protects the deep pack during lifting, housing insertion and clamping.
Continuous polyurethane potting prevents untreated air from tracking between the media pack and frame.
Customer Product Concerns
Final filters in central systems must tolerate heavier dust loading and repeated handling without losing their air seal or media geometry.
A shallow filter reaches its pressure limit too quickly in a central air handler.The deep media pack spreads captured particles over a larger area and extends the loading path.
Closely packed pleats touch and block airflow after extended operation.Corrugated aluminium separators maintain consistent channels from the upstream to downstream face.
A lightweight frame twists when maintenance staff remove a loaded filter.The rigid metal box and faceguards protect the pack during transport and change-out.
Air bypass occurs where the media pack meets the frame.Full-depth potting seals the pack edge and anchors it against differential-pressure movement.
Typical Applications
Central cleanroom supply-air systemsContainment exhaust filter housingsPharmaceutical production air handlersHospital isolation ventilationIndustrial high-purity process air
Technical Parameters
Representative construction ranges for a deep-pleat high-capacity HEPA filter are shown below.
| Core Material | Water-resistant borosilicate glass-microfibre HEPA media with corrugated aluminium separators |
|---|---|
| Panel Thickness | 150–292 mm overall filter depth |
| Effective Width | 305–610 mm nominal face width |
| Maximum Length | Up to 1220 mm nominal face height |
| Steel Facing Thickness | 0.9–1.2 mm galvanized-steel or stainless-steel deep box frame |
| Core Density | Approximately 40–65 kg/m³ equivalent deep-pack media density |
| Thermal Conductivity | Approximately 0.035–0.045 W/(m·K) for the glass-microfibre filter pack |
| Surface Finish | Mill-galvanized steel or clean brushed stainless steel with protective faceguards |
| Joint Type | Single or double closed-cell gasket with continuous polyurethane media-pack potting |
| Customization | Available based on the intended application and operating environment. |
Available Options
H13 or H14 filter classGalvanized-steel or stainless-steel frameOne-sided or two-sided faceguardGasket positions to suit front-access or side-access housing
Planning a High-Capacity HEPA Filter specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
