High Temperature Resistance HEPA Filters with Aluminum Foil Separator - China Suppliers & Factory Products
Suitable for high-temperature equipment used to eliminate germs or viruses — including pharmaceutical factories, food processing, and fire-safety ventilation systems requiring high-temperature air conditioning solutions.
This is the core of the filter, determining its filtration efficiency.
| Material | Temperature Range | Notes |
|---|---|---|
| Glass Fiber Paper (Primary) | 250°C – 400°C (long-term) | Most common and cost-effective |
| Ceramic Fiber Paper | 500°C – 800°C+ | Excellent temperature resistance |
| Sintered Stainless Steel Metal Fiber Felt | > 600°C | High durability |
| PTFE Membrane Laminated Media | ≤ 260°C (continuous) | Medium-temperature applications |
Primary Material: Aluminum Foil | Alternative: Stainless Steel Foil
Primary Materials: High-Temperature Silicone or Inorganic Adhesive
The frame is the structural skeleton of the filter and must be robust and heat-resistant.
The rational selection of filter efficiency and face velocity contributes to comprehensive economic benefits.
For filters made of the same material, higher efficiency typically results in greater resistance and higher cost, while lower efficiency leads to reduced resistance and cost. Altering the air velocity will also affect resistance, efficiency, and the number of filters required — so appropriate selection should be made according to specific conditions.
Sometimes, excessive resistance can cause previously captured dust to become dislodged and re-enter the airflow — when this risk arises, the filter should also be replaced.
The resistance of a filter increases with higher airflow rates. By increasing the surface area of the filter media, the relative velocity of air passing through the filter can be reduced, thereby decreasing the resistance.
Wind Speed vs. Resistance Relationship Diagram
