High Temperature Resistance HEPA Filter
High Temperature Resistant HEPA Filter (Anti-Temperature HEPA Filter) is a special high-efficiency terminal filter customized for continuous high-temperature production and sterilization environments. Ordinary standard HEPA filters will suffer media deformation, glue melting, seal failure and fiber shedding above 70°C; this series uses all high-temperature resistant raw materials to maintain stable filtration performance under long-term high heat conditions, without leakage, deformation or secondary particle pollution.
It is widely used in pharmaceutical depyrogenation tunnels, high-temperature drying ovens, sterilization lines, food baking workshops, industrial heat treatment cleanrooms and high-temperature ventilation air handling units, meeting high-temperature sterile production and heat purification process requirements.
Main Structure & High-Temperature Material Composition
1. Outer Frame
- SUS304 Stainless Steel Frame (Standard): Resists high temperature oxidation, anti-rust, fits 200–250°C working environment
- SUS316L Stainless Steel Frame (Premium): Corrosion + high temperature dual resistance, for acid vapor high-heat sterilization tunnels
- Galvanized carbon steel frame: Economical type for 180°C low-heat drying lines
2. High Temperature Filtration Media (Two Core Options)
Option 1: High-Temperature Borosilicate Glass Fiber Media
- Max continuous temperature: 250°C
- Efficiency: H13 / H14 @ 0.3μm MPPS
- Feature: Low shrinkage under high heat, non-combustible, stable fiber structure, low cost compared to PTFE
- Suitable for: Pharma depyrogenation tunnel, glass bottle dry heat sterilization
Option 2: PTFE Microporous Membrane Media (Ultra High Temp)
- Max continuous temperature: 350°C
- Feature: Inert chemical property, resistant to acid, alkali, steam and high heat, zero fiber shedding, no organic volatile release
- Suitable for: Chemical high-temperature reaction workshops, food baking lines with oil vapor, high-corrosion high-heat industrial processes
3. High Temperature Separator
- Corrugated aluminum foil spacer: For ≤250°C glass fiber type, rigid structure, no thermal deformation
- Stainless steel corrugated spacer: For 300–350°C PTFE high temp version, anti-oxidation under ultra-high heat
4. High-Temperature Sealing System (Core Anti-Temp Technology)
- High temperature silicone rubber gasket / integral high temp silicone pouring seal
- Working range: -40℃ ~ 350℃, will not melt, harden or crack under long-term heat
- No PU glue (standard HEPA glue fails above 80°C); full high-temperature inorganic adhesive for bonding media pack and frame, zero delamination risk
5. Protective Mesh
Temperature Grade Classification & Matching Scenarios
| Temperature Grade | Max Continuous Working Temp | Media Type | Typical Application |
|---|---|---|---|
| Medium High Temp | 180°C | High temp glass fiber | Food drying oven, low-heat clean drying lines |
| Standard High Temp | 250°C | Borosilicate glass fiber | Pharmaceutical depyrogenation tunnel, vial dry heat sterilizer |
| Ultra High Temp | 350°C | PTFE membrane | Chemical high-heat reactor exhaust, high-temperature baking sterilization lines |
Typical Application Scenarios
- Pharmaceutical Industry: Vial / ampoule dry heat depyrogenation tunnels, high-temperature sterile drying lines, powder medicine heat treatment clean zones
- Food Processing: High-temperature baking aseptic production lines, canned food sterilization tunnel air circulation filtration
- Industrial Manufacturing: Electronic component high-temp clean curing oven, heat treatment workshop high-heat AHU terminal filtration
- Chemical Labs: High-temperature reactor exhaust purification, corrosion & high heat dual-resistant ventilation systems
- Medical Device: Surgical instrument high-temperature dry sterilization clean tunnel air supply
Compliance Standards
- Filtration standard: EN1822:2019 H13/H14
- High-temperature material test: ASTM E119 thermal stability standard
- Pharmaceutical specification: EU GMP Annex 1 dry heat sterilization requirements
- Certification: CE, ISO9001, RoHS
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