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Air Filters and Chemical Filtration
High-Temperature HEPA Filter
A heat-resistant HEPA filter assembled with glass-microfibre media, high-temperature separators and metal or ceramic framing for hot-air process zones.
- Heat-Resistant Construction
- Glass-Microfibre Media
- Ceramic or Stainless Frame
- High-Temperature Gasket
Product Introduction
The high-temperature HEPA filter is designed for ovens, dryers and depyrogenation equipment that operate beyond the temperature limits of standard polyurethane-sealed filters. A glass-microfibre pack is formed with aluminium or glass-based separators and secured inside a stainless-steel or composite-ceramic frame using an inorganic or high-temperature silicone sealant. Braided-glass or silicone gaskets accommodate the selected service temperature. Thermal expansion clearances and reinforced faceguards protect the pack during controlled heat-up and cool-down cycles.
Key Features
Stainless-steel or composite-ceramic framing remains dimensionally stable through repeated thermal cycles.
Braided-glass and high-temperature silicone gasket choices suit different oven flange arrangements.
Expansion-tolerant pack mounting reduces mechanical stress as the frame and media heat at different rates.
Customer Product Concerns
Standard HEPA components can soften, outgas or lose their perimeter seal when exposed to prolonged high-temperature airflow.
Polyurethane sealant deteriorates during repeated oven cycles.An inorganic or temperature-rated silicone pack seal is selected for the intended continuous and peak temperature.
Different expansion rates distort the media pack as the filter heats.Controlled pack clearance and compliant high-temperature sealing absorb differential thermal movement.
A conventional rubber gasket hardens and leaks at elevated temperature.Braided-glass or high-temperature silicone gasketing maintains a suitable flange interface.
Rapid heating damages a filter even though its nominal temperature rating is adequate.The robust frame and reinforced pack are intended for defined ramp-up and cool-down procedures.
Typical Applications
Pharmaceutical depyrogenation tunnelsSterilizing and drying ovensFood-process hot-air systemsHigh-temperature coating linesLaboratory thermal chambers
Technical Parameters
Representative construction ranges for high-temperature HEPA filters are listed below.
| Core Material | Heat-resistant glass-microfibre HEPA media with aluminium or glass-based separators |
|---|---|
| Panel Thickness | 84–292 mm overall filter depth |
| Effective Width | 305–610 mm nominal face width |
| Maximum Length | Up to 610 mm nominal face height |
| Steel Facing Thickness | 0.8–1.2 mm 304 stainless-steel frame or protective faceguard |
| Core Density | Approximately 45–70 kg/m³ equivalent heat-resistant media-pack density |
| Thermal Conductivity | Approximately 0.040–0.055 W/(m·K) for the mineral-fibre filter pack |
| Surface Finish | Clean brushed stainless steel or smooth composite-ceramic frame |
| Joint Type | Braided-glass rope gasket or high-temperature silicone perimeter gasket |
| Customization | Available based on the intended application and operating environment. |
Available Options
Stainless-steel or composite-ceramic frameBraided-glass or silicone gasketSeparator-style or mini-pleat packContinuous-temperature configurations from 230 °C to 350 °C
Planning a High-Temperature HEPA Filter specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
