The custom PTFE air filter cartridge 80×117 is a high-performance pleated filtration element engineered for industrial dust collection systems handling sticky, hygroscopic, fine, or chemically reactive dusts where standard filter media would blind, degrade, or fail to release dust effectively.
The filter element is constructed from a PTFE (polytetrafluoroethylene) membrane laminated onto a durable substrate – typically polyester or spunbond fabric. PTFE is a high-performance fluoropolymer with a unique combination of properties that make it the material of choice for challenging filtration applications. The PTFE membrane creates a smooth, non-stick, hydrophobic surface that provides several critical advantages: superior dust cake release during pulse cleaning, excellent resistance to moisture and chemicals, and surface filtration that prevents particles from embedding into the media depth.
| Type | Custom Air Filter Cartridge |
| Outer diameter | 80 mm |
| Height | 117 mm |
| Connection | G1 ½ female thread |
| Filter layer | PTFE |
| Support core | Diamond-pattern plastic mesh sleeve |
| Origin | Henan, China |
The parameters listed above are specific to this custom air filter. Please send us your required parameter information to obtain a quote.
Huahang Filter, a filter element manufacturer with over 20 years of production and operation experience, adheres to quality as its core principle and strictly controls every production process.

| Feature | PTFE | Polyester | Fiberglass |
|---|---|---|---|
| Filtration Efficiency | >99.8% at PM0.3 | 95-99% at 1-5 μm | High (HEPA-grade) |
| Dust Release | Excellent – non-stick surface | Good | Moderate |
| Chemical Resistance | Excellent | Good | Good |
| Moisture Resistance | Excellent | Good | Good |
| Temperature Resistance | Up to 90-120°C | Up to 135°C | Up to 200-400°C |
| Filtration Mechanism | Surface filtration | Depth / Surface | Depth |
| Cost | Higher | Lower | Moderate |

Contact us for more details about the air filters.
Q: What is the difference between PTFE-coated and PTFE membrane filters?
A: PTFE-coated filters have a thin PTFE layer applied to the substrate surface – cost-effective for many applications. PTFE membrane filters have a full PTFE film laminated to the substrate, providing higher efficiency, better dust release, and superior chemical resistance, at a higher cost.
Q: Why would I choose a PTFE filter over a standard filter?
A: Choose PTFE when you have sticky, hygroscopic, or fine dusts that blind standard media; chemical exposure (acids, alkalis, solvents); high humidity or moisture; or when consistent low pressure drop is critical for energy efficiency. PTFE filters also have a longer lifespan compared to other materials, making them cost-effective in the long run.
Q: Can this PTFE filter cartridge be cleaned and reused?
A: No. The non-stick surface allows for effective in-service pulse cleaning, but the cartridge itself is designed for single-use replacement when differential pressure reaches the change-out point. Attempting to wash or water-clean the cartridge can damage the membrane and compromise filtration performance.