High-Temperature Filters: Precision Filtration for Heat-Intensive Industrial Processes
Exceptional Thermal Filtration Efficiency: Engineered for demanding thermal environments, our High-Temperature Medium Filter (F6-F9 / MERV 11-15) maintains consistent particulate separation from 150°C up to 300°C. Built with ultra-fine heat resistant fiberglass filter media, each unit prevents outgassing and fiber degradation under peak operating temperatures.
Critical Middle-Stage Protection: Serving as a reliable high temp industrial oven air filter, our units protect sensitive thermal processing equipment—including tunnel ovens, curing systems, and automotive paint booths. They intercept airborne contaminants before they affect product finishes, ensuring process compliance and higher yields.
Advanced Heat-Resistant Architecture: Utilizing rigid aluminum separators, this high temperature deep pleat air filter preserves uniform pleat spacing and structural stability during intense thermal expansion. Reinforced metal frames eliminate seal bypass, warping, and media failure commonly seen in standard components.
Optimized Airflow & Energy Savings: Engineered for low pressure drop and uniform air velocity, our filters prevent localized hot spots across chambers. As a source manufacturer, we produce custom size heat resistant air filters tailored to exact equipment dimensions, helping facilities minimize operational downtime and reduce maintenance overhead.


Custom High Temperature Medium Filters | Premium Fiberglass Media & Metal Frames
Advanced Temperature-Rated Media: Engineered with non-shedding, continuous-strand heat resistant fiberglass filter media, our High-Temperature Medium Filter (F6-F9 / MERV 11-15) captures fine particulates without thermal degradation. Cured to eliminate outgassing, the media retains structural stability and filtration efficiency across operating temperatures up to 300°C.
Heavy-Duty Frame Construction: Built to withstand severe thermal expansion and pressure fluctuations, each unit is housed in a rigid metal frame—available in high-grade galvanized steel, aluminum, or 304/316 stainless steel. Featuring a high temperature deep pleat air filter design with aluminum separators and specialized thermal sealants, our assemblies eliminate frame distortion and air bypass in continuous thermal processes.
Full OEM & Factory Customization: As a custom size heat resistant air filter manufacturer, we provide direct OEM/ODM engineering support to match non-standard equipment profiles. We deliver tailored solutions—including custom frame depths, specialized high-heat gaskets, and exact dimensional tolerances—to fulfill wholesale oven filter replacement and new facility installation requirements worldwide.
Heat Resistant Air Filter Applications Across High-Temperature Industrial Operations
Industrial Coating & Automotive Painting: Engineered as a high-performance heat resistant medium filter for automotive paint booths, our units capture fine particulates in high-heat curing zones, preventing coating defects like “fish eyes” and ensuring flawless paint finishes.
Electronics & Semiconductor Manufacturing: Serving as an essential high temperature air filter for electronics cleanroom systems, these filters withstand intense thermal stress during wafer baking and PCB curing without fiber shedding or outgassing, protecting sensitive microelectronics.
Food Processing & Industrial Baking: Built with non-shedding fiberglass and food-safe sealants, our assemblies provide a reliable high temperature air filter for industrial ovens & drying tunnels, operating safely up to 300°C for baking lines and sterilization processes.
Chemical & Petrochemical Processing: Featuring rigid aluminum separators and durable metal frames, our heat resistant filter F6-F9 for chemical processing plants excels in hot gas recovery and exhaust purification loops, maintaining low pressure drop under rapid thermal cycles.
HVAC Recirculation & Air Handlers: Designed for extreme-environment AHU systems, our products integrate seamlessly as a high temp pre-filter & medium filter for hvac air handler units, intercepting particulates upstream to protect heat exchangers and optimize energy efficiency.
Heat Resistant Air Filter Comparison | Factory-Direct vs Standard Competitors
| Key Evaluation Criteria | Our Factory-Direct Filters | Standard Market Competitors |
|---|---|---|
| Temperature Resistance | Engineered for harsh industrial environments, our filters maintain consistent filtration efficiency under continuous temperatures of 150°C–300°C without material degradation. | Standard filters are designed for ambient use; their media fibers often collapse, melt, or lose structural bonding once temperatures exceed the 100°C threshold. |
| Structural Integrity | We utilize heavy-duty, corrosion-resistant metal frames that undergo thermal stress testing to guarantee zero warping, ensuring a perfect seal inside your oven’s housing. | Competitor frames are typically constructed from standard-grade materials that deform under prolonged thermal cycling, leading to air bypass and filtration efficiency drops. |
| Sealing Reliability | We apply a proprietary, high-heat specialized sealant that maintains an airtight bond between the media and the frame, preventing hazardous bypass and melt-off at 300°C. | Standard industrial glues fail at high temperatures, turning brittle or liquefying, which results in the filter media detaching from the frame and causing system failure. |
| Airflow Stability | Our corrugated aluminum foil separators ensure consistent, uniform pleat geometry, maintaining optimal airflow distribution and low initial resistance even under extreme heat. | Most competitors use paper or adhesive-backed separators that soften in heat, causing pleats to stick together, which blocks airflow, spikes resistance, and increases motor costs. |
| Supply & Delivery | As a direct source factory, we eliminate intermediary markups, providing large-scale production capacity, rigorous quality inspection, and reliable lead times for global B2B clients. | Relying on third-party traders often results in opaque supply chains, limited stock availability, and a lack of direct technical accountability for product failures in the field. |
| Customization | We offer total design flexibility, including custom dimensions, specialized media layers, and unique frame configurations tailored to fit your specific, non-standard oven layouts. | Traders and standard suppliers are typically restricted to rigid, off-the-shelf catalog sizes, forcing you to retrofit your expensive industrial equipment to match filter size. |
High Temperature Medium Filter Technical Specifications | F6-F9 / MERV 11-15 Datasheet
| Dimension | Rated Air Flow | Initial resistance | Efficiency (class) |
|---|---|---|---|
| 305×305×150/220/292mm | 700~1500m³/h | ≤ 150–250Pa | F6 ~ F9 |
| 320×320×150/220/292mm | 700~1500m³/h | ||
| 484×484×150/220/292mm | 1000 ~ 2200m³/h | ||
| 592×287×150/220/292mm | 1400 ~ 3000m³/h | ||
| 592×592×150/220/292mm | 1000 ~ 2000m³/h | ||
| 610×305×150/220/292mm | 1500 ~ 3000m³/h | ||
| 610×610×150/220/292mm | 2000 ~ 4000m³/h |
Note: These are standard specifications. For custom sizes or technical inquiries, 【please contact our engineering team.】
Reliable High-Temp Filter Manufacturer: Custom Filtration Solutions for Industrial Processes
We manage the entire production lifecycle—from premium raw material selection to automated assembly and rigorous leak testing—ensuring every High-Temperature Medium Filter (F6-F9 / MERV 11-15) meets international clean-air standards. Operating as a direct high temperature industrial air filter manufacturer, we eliminate intermediary costs to deliver factory-direct pricing without sacrificing structural quality.
We provide full OEM/ODM capabilities to solve complex thermal air handling challenges. As a reliable custom size heat resistant air filter manufacturer, we engineer non-standard frame depths, specialized high-heat gaskets, and tailored pleat configurations to fit your exact equipment specs. Whether you are arranging a wholesale oven filter replacement or seeking a long-term industrial oven filter supplier for new facility setups, our facility guarantees fast production turnaround, consistent batch quality, and dedicated supply chain support.
Q1: What operating temperatures can a high-temperature medium filter safely withstand?
A1: Our standard High-Temperature Medium Filter (F6-F9 / MERV 11-15) units are engineered for continuous operation at temperatures ranging from 150°C up to 300°C. Built with heat-cured, continuous-strand glass fiber media and corrugated aluminum separators, these filters preserve structural geometry and airflow integrity without melting, outgassing, or suffering thermal bypass during intensive heating cycles.
Q2: How does the EN779 rating (F6-F9) compare to the ASHRAE MERV scale (MERV 11-15) for heat-resistant filters?
A2: The European EN779 standard (F6 to F9) directly correlates with the North American ASHRAE MERV scale (MERV 11 to MERV 15). F6 corresponds to MERV 11–12 (capturing 60–80% of 1–3 micron particles), F7/F8 align with MERV 13–14 (80–95%+ capture efficiency), and F9 matches MERV 15. Specifying a heat resistant filter F6-F9 for chemical processing plants or drying tunnels ensures precise particulate control regardless of regional compliance terminology.
Q3: What is the difference between a high-temperature medium filter and a high-temperature HEPA filter?
A3: The primary difference lies in filtration efficiency and placement within the HVAC system. A high temperature deep pleat air filter in the F6-F9 (MERV 11-15) range serves as a medium-efficiency filter designed to capture sub-micron to coarse dust before it reaches critical heating coils or downstream high-efficiency stages. In contrast, high-temp HEPA filters (H13/H14) capture 99.97%+ of 0.3-micron particles and are deployed at the final stage of ultra-clean ovens or sterile environments.
Q4: How do you prevent seal leakage, frame warping, and fiber shedding at 300°C?
A4: To eliminate frame distortion under rapid expansion, we construct frames using high-grade galvanized or 304/316 stainless steel. We apply a specialized 300°C high-heat ceramic/silicone sealant that forms an airtight bond between the frame and media, preventing bypass. Additionally, our heat resistant fiberglass filter media is heat-cured and non-shedding, preventing thermal degradation or fiber contamination on downstream equipment or painted finishes.
Q5: Can I request custom sizes and frame depths for non-standard industrial ovens?
A5: Yes. As a specialized custom size heat resistant air filter manufacturer, we provide full OEM/ODM direct factory customization. We can engineer non-standard face dimensions (W×H), specialized frame depths (such as 150mm, 220mm, or 292mm), custom aluminum separator spacing, and specialized high-heat gaskets to fit your exact equipment specifications for new installations or replacement orders.



