We Craft Every Filter Cloth with Care
Our filter cloth are designed based on actual site conditions, not generic catalog assumptions. We help you select the right media to balance filtration efficiency, pressure drop, and service life.
Polyester (PE/PET) filter bags are made by needle punching .Polyester is a low-cost, widely available standard fiber used across manyindustries for industrial air filtration. It offers excellent tensile strengthand oxidation resistance with good mechanical stability.
Learn About Polyester Needle Felt

| ITEM | PE155 | PEF155 | PEF953 |
|---|---|---|---|
| Working temperature (°C) | 130 | 130 | 130 |
| Peak temperature (°C) | 150 | 150 | 150 |
| Emission (mg) | / | 10 | 5 |
| Weight (g/m2) | 550±5% | 550±5% | 530±5% |
| Thickness (mm) | 2.2±10% | 2.2±10% | 1.9±10% |
| Air permenability (m3/m2/min@200Pa) | 14±20% | 12±20% | 13±20% |
| Tensile strength/ warp(N/5cm) | ≥1000 | ≥1000 | ≥1000 |
| Tensile strength / weft(N/5cm) | ≥1400 | ≥1400 | ≥1400 |
| Tensile elongation / warp(%) | ≤35 | ≤35 | ≤35 |
| Tensile elongation / weft(%) | ≤50 | ≤50 | ≤50 |
| 24-hour heat shrink / warp(%) | ≤1.5 | ≤1.5 | ≤1.5 |
| 24-hour heat shrink / weft(%) | ≤1.0 | ≤1.0 | ≤1.0 |
Post-treatment: Anti-Stati / Water & Oil Repellent / PTFE Dipping / PTFE Membrane
To further enhance performance, we provide a series of advanced post-treatment processes that improve fabric durability, filtration efficiency, and adaptability to various working conditions.


Blending Fiber Polyester Anti-static Filter Bag

Polyester filter bags can be made into different shapes, which can be mainly divided into the following three types:
1.Round type.
2.Flat type.
3. Star/pleated type.
In dry conditions without acidic gases, polyester filter bags deliver stable performance, helping you reduce energy consumption, extend equipment lifespan, and easily meet environmental requirements.
We also provide various high-quality filter cages, filter bags, and other accessories to offer you a one-stop dust removal solution.
Aokai Environtec is a leading manufacturer of baghouse filter cloth, filter bags, and baghouse accessories. Founded in 2004 and headquartered in China, our products are used in a variety of applications and industries, including asphalt mixing plants, cement plants, mining operations, power generation plants, metallurgy industry, renewable energy industry, waste incineration plants, and other industrial facilities. Our mission is to make the world a cleaner and better place by protecting people, the planet, and production from the harmful effects of industrial processes.




Annual Filter Media Production
Annual Filter Bag Production
Annual Cage Production
Smart Warehousing








From Fiber to Filter: Full Control of Quality
Raw Material Selection
Mixing and Pretreatment
Intelligent Spinning & Web Formation
Precision Needle Punching Molding
Heat Setting
Singeing Treatment
Membrane Lamination
water/oil repellency
Raw material quality control
The raw materials of Aokai have undergone tests for 13 indicators in the laboratory, including fiber composition, air permeability, breaking strength and elongation at break, thermal shrinkage, moisture regain, oil content, and fiber melting point, with all test standards surpassing the relevant criteria.
Production process quality control
The factory has obtained ISO9001 and ISO14001 certifications. It operates in accordance with the 7S management standards, strictly controls product quality in line with international high-end product testing standards, retains inspection records for more than 3 years and electronic records permanently, ensuring the traceability of each batch of products.