Top 8 High Temperature Air Filter Manufacturers in China
High temperature air filtration plays a critical role in many industrial processes. Steel production, cement plants, waste incineration, chemical processing, and power generation all operate under extreme thermal conditions. Standard HVAC filters cannot survive these environments. This is where High Temperature Air Filters become essential.
China has become one of the world’s largest manufacturing bases for industrial filtration. Many Chinese manufacturers now serve global markets with certified products, stable quality, and competitive pricing. This article reviews ten export-oriented High Temperature Filter Manufacturers in China, selected using transparent and verifiable criteria.
What Is a High Temperature Air Filter?
Definition
A High Temperature Air Filter is designed to operate continuously under elevated temperatures, typically from 250°C to over 500°C, while maintaining stable filtration efficiency and structural integrity.
These filters are commonly installed upstream of exhaust systems, heat recovery units, or industrial furnaces.
How It Works
Unlike standard air filters, high temperature filters rely on:
- Heat-resistant filter media
- Reinforced frames
- Stable sealing materials
They trap particles through surface or depth filtration while resisting thermal deformation.
Common Materials Used in High Temperature Filters
In high temperature air filtration, different filter media are selected based on thermal resistance, filtration efficiency, and cost control. In practice, each material has a relatively clear positioning.
High Temperature Synthetic Fiber Media
High temperature synthetic fiber media, often referred to as high temperature polyester or chemical fiber cotton, are mainly used for primary filtration (G2–G4).
- Continuous resistance up to 120-180°C
- Stable performance at elevated temperatures
- Cost efficiency for large airflow systems
They are commonly installed as pre-filters to protect downstream medium- and high-efficiency filters in ovens, furnaces, and industrial exhaust systems.
Glass Fiber Media
Glass fiber is one of the most widely used materials in high temperature filtration. It can be applied across multiple efficiency levels, including primary, medium, and high efficiency filters.
- Continuous temperature resistance up to 250–300°C
- Good dimensional stability under heat
- Broad application range
Because of its versatility, glass fiber media is often used in medium-efficiency filters (F7–F9) as well as high temperature HEPA or fine filters, depending on fiber structure and density.
ePTFE Filter Media
ePTFE media is generally used for medium- and high-efficiency filtration, especially in applications requiring stable efficiency and chemical resistance.
- Uniform pore structure
- High filtration efficiency with relatively low pressure drop
- Excellent resistance to chemicals and moisture
In high temperature systems, ePTFE is often selected for critical process air or exhaust filtration, where both temperature resistance and filtration stability are required.
Key Applications of High Temperature Air Filters
High temperature filters are used in industries where heat and particulate control are both critical:
- Industrial furnaces and kilns
- Cement and steel production lines
- Waste incineration plants
- Power generation facilities
- Chemical processing systems
In these applications, filters must meet not only thermal requirements but also airflow stability and pressure drop limits.
Top 8 High Temperature Air Filter Manufacturers in China
1. Guangzhou RT Air Filtech Co., Ltd
Website: //www.rtfilters.com/
Guangzhou RT Air Filtech Co., Ltd is a professional manufacturer specializing in industrial air filtration. The company offers a complete range of High Temperature Air Filters, including flame-retardant and heat-resistant series.
- Continuous operating temperature up to 250–450°C (model dependent)
- Glass fiber and composite media options
- ISO 9001 and ISO 14001 certified
- OEM and private labeling support
- Products exported to multiple regions, including Europe, the Middle East, and Southeast Asia
RT Air Filtech focuses on stable performance and customization. Its products are commonly used in industrial ovens, coating lines, and thermal processing systems.
2. Shanghai Sffilter Industry Co., Ltd
Sffilter Industry provides industrial air filtration solutions for global customers. The company supplies high temperature panel and box filters for demanding environments.
- Export-oriented manufacturing
- High temperature resistance up to 300°C
- Compliance with ISO and EN standards
3. Dongguan Klair Filtration Technology Co., Ltd
Sffilter Industry provides industrial air filtration solutions for global customers. The company supplies high temperature panel and box filters for demanding environments.
- Glass fiber high temperature filters
- Stable pressure drop performance
- Export experience through OEM projects
- Custom sizes available
4. Shenzhen Xiangnan High Tech Purification Equipment Co., Ltd
Xiangnan supplies air filtration products for industrial and pharmaceutical applications.
- High temperature HEPA and pre-filter options
- EN 1822 test capability
- Export markets in Asia and Europe
- Focus on clean manufacturing environments
5. Dongguan Senbao Purifying Equipment Co., Ltd
Senbao manufactures high temperature HEPA filters designed for industrial processes requiring fine particle control.
- H13 and H14 efficiency options
- High temperature resistance for oven systems
- Aluminum or stainless steel frames
- Export-oriented production
6. Dongguan Yaning Purification Equipment Co., Ltd
Yaning is a well-known purification equipment supplier with international sales.
- High temperature HEPA filters for clean ovens
- ISO-certified production
- CE and UL support for some models
- Global distributor network
7. Suzhou Huilong Purification Technology Co., Ltd
Huilong provides industrial air filtration systems, including heat-resistant filter products.
- Industrial exhaust filtration
- High temperature resistance up to 300°C
- Customized airflow solutions
- Export-focused business model
8. Wuxi Yijing Purification Equipment Co., Ltd
Yijing Purification manufactures air filters for industrial HVAC and thermal applications.
- High temperature panel filters
- Stable structural design
- Competitive lead times
- Export experience in developing markets
