Air filter element is also called dust filter element, dust filter cartridge, air filter, etc. It is a device used to filter solid particles, dust, pollen, and other impurities in the air. It is widely used in many fields such as industry, automobile, medical treatment, home appliances, and so on.
An Air Filter Element, also known as a dust filter element or air filter cartridge that is a high‑efficiency filtration device designed to remove dust with pollen and solid particles from air or gas streams. It hardly ensures that the air entering equipment and systems is clean, dry and contaminant‑free which thereby extending equipment lifespan and enhancing performance.
In modern industrial environments, airborne pollutants can cause severe machinery wear, reduced production efficiency, and environmental concerns. The Air Filter Element acts as the first line of defense which is capturing even microscopic contaminants before they reach sensitive components.
Key reasons for importance:
Protects Equipment: Prevents abrasive dust from damaging engines, compressors, and turbines.
Improves Air Quality: Ensures cleaner operational air, vital for human and mechanical health.
Increases Energy Efficiency: Reduces pressure drop and maintains optimal airflow.
Compliance Assurance: Helps industries meet ISO clean‑air standards and environmental regulations.
Below is a comprehensive comparison table of the most common air filter element types used across industries:
Type No. | Filter Media | Shape / Design | Filtration Efficiency | Temp. Range (°C) | End Cap Material | Application Area | Service Life (hrs) |
1 | Cellulose | Cylindrical | 98% | -10 to 80 | Galvanized Steel | General Dust Filtration | 8,000 |
2 | Polyester | Conical | 99% | -20 to 100 | Stainless Steel | Metal Processing | 10,000 |
3 | Nano-fiber | Pleated Cartridge | 99.97% | -20 to 120 | Aluminum | Pharmaceutical | 12,000 |
4 | PTFE-coated | Cylindrical | 99.99% | -20 to 120 | Stainless Steel | Food & Beverage | 11,000 |
5 | Glass Fiber | Panel | 99.95% | -10 to 100 | Plastic | Chemical Plants | 9,500 |
6 | Polyester Anti-static | Conical | 99.5% | -20 to 100 | Zinc Coated | Powder Coating | 10,000 |
7 | Activated Carbon | Cylindrical | 95% | 0 to 80 | Plastic | Odor Removal | 7,500 |
8 | Synthetic Fiber | Pleated | 99% | -20 to 90 | Galvanized Steel | Automotive | 9,000 |
9 | Paper + Polyester Blend | Cylindrical | 98% | -10 to 80 | Zinc Alloy | HVAC Systems | 8,500 |
10 | Stainless Steel Mesh | Cartridge | 95% | -50 to 200 | Stainless Steel | High-Temp Filtration | 15,000 |
High-quality air filter elements are built from advanced filtration media and durable structural materials.
Filter Media: Cellulose fiber, polyester fiber, nano-fiber composite or PTFE membrane-coated paper.
Support Structure: Galvanized steel mesh, stainless steel frame, or polyurethane end caps.
Seal Material: Polyurethane or neoprene rubber for airtight sealing.
Filtration Efficiency: 99.9% for particles ≥ 0.3 μm.
Operating Temperature Range: −20°C to +120°C (depending on material).
Surface Treatment: Anti-static, flame-retardant, or oil-resistant coatings (optional).
NO | MODEL | OD(mm) | ID（mm） | STANDARD FILTER AREA (M²) | MAXIMUM FILTER AREA (M²) | FILTER CLOTH DENSITY （G/M²） |
1 | φ133×1000 | 133 | 72 | 1.8 | 2 | 240~260 |
2 | φ133×2000 | 133 | 72 | 3.6 | 4 | 240~260 |
3 | φ160×1000 | 160 | 85 | 2.3 | 2.5 | 240~260 |
4 | φ160×2000 | 160 | 85 | 4.6 | 5 | 240~260 |
5 | φ325×660 | 325 | 215 | 7 | 10 | 240~260 |
6 | φ325×900 | 325 | 215 | 9 | 12 | 240~260 |
7 | φ325×1000 | 325 | 215 | 11 | 13 | 240~260 |
8 | φ325×1320 | 325 | 215 | 14 | 17 | 240~260 |
9 | φ325×1500 | 325 | 215 | 16 | 19 | 240~260 |
10 | φ325×2000 | 325 | 215 | 20 | 24 | 240~260 |
11 | φ350×660 | 350 | 240 | 7 | 10 | 240~260 |
12 | φ350×900 | 350 | 240 | 9 | 12 | 240~260 |
13 | φ350×1000 | 350 | 240 | 11 | 13 | 240~260 |
14 | φ350×1320 | 350 | 240 | 14 | 17 | 240~260 |
15 | φ350×1500 | 350 | 240 | 16 | 19 | 240~260 |
16 | φ350×2000 | 350 | 240 | 20 | 24 | 240~260 |
Air filter elements operate on the principle of mechanical filtration combined with electrostatic and surface capture mechanisms. Here’s how they function step by step:
1. Air Intake – Contaminated air enters the filter housing under controlled airflow.
2. Particle Capture – As air passes through the pleated filter media, particles are trapped by interception, impaction, and diffusion.
3. Clean Air Output – Purified air exits through the filter core while dust remains on the outer surface.
4. Pulse Cleaning (optional) – In pulse-jet filters, compressed air periodically removes collected dust from the surface, restoring efficiency.
5. Continuous Filtration – The process repeats, ensuring consistent, high-quality air output.
This efficient mechanism makes air filter elements indispensable in modern industrial dust collection and ventilation systems.
Product Role: The main role of the air filter element is to remove dust particles in the air to ensure that the air inhaled by the equipment or system is clean and dry, and to prevent dust and other particles from causing damage to the equipment or system.
According to different filtration precision and materials, the air filter element can be divided into many types, such as polyester filter element, anti-static filter element, high-temperature filter element, and so on. Depending on the installation method, it can be divided into rotary cartridges, inner wire cartridges, fixed cartridges, and so on.
Mechanical cartridge: filter particles in the air through the pores of the filter material.
Electrostatic filter element: use the electrostatic principle to adsorb the tiny particles in the air.
The air filter element usually consists of the skeleton, filter material, sealing ring, and end cap.
Skeleton: Provides support to ensure the structural stability of the cartridge.
Filter media: Filter particles in the air, is the core part of the cartridge.
The sealing ring: ensures the sealing of the cartridge and the equipment.
End cap: protects the filter media and facilitates installation and replacement.
High-efficiency filtration: can effectively remove dust, particles, and other impurities in the air.
Good air circulation: ensure air circulation and reduce system resistance.
Durability: maintains stable filtration performance in harsh environments.
Easy to replace: simple design, easy to install and maintain.
Maintenance and Replacement: According to the usage environment and equipment requirements, the air filter element should be checked, cleaned, and replaced regularly to ensure normal operation and prolong the service life of the equipment. When replacing the air filter element, choose a product that meets the specifications and quality.
Feature | HEBEIOUTAI Air Filter Element | Standard Market Product |
Filtration Efficiency | ≥99.9% | 95–97% |
Filter Media | Multi-layer synthetic composite | Single layer fiber |
Service Life | Up to 1.5× longer | Average lifespan |
Operating Resistance | Low | Moderate to high |
Maintenance | Easy, tool-free | Complex assembly |
Customization | Fully customizable | Limited options |
At HEBEIOUTAI Environmental Protection Equipment Co., Ltd., we are dedicated to delivering advanced dust filtration and air purification products tailored to industrial demands. Whether you require rotary, anti-static, or high‑temperature cartridges, we provide comprehensive filtration solutions with guaranteed quality and precision.
