Premium Aluminum Frame G4 Air Filter for HVAC Systems
Crafted with precision, the frame is available in either robust aluminum alloy or galvanized material. Its innovative removable design ensures seamless and hassle-free filter replacement while allowing the original frame to be reused time and again, promoting sustainability.
This state-of-the-art filter employs superior materials, including non-woven fabric, nylon mesh, fiberglass, and synthetic fibers. It boasts a metal wire composite or an embedded metal skeleton, and can also feature a double-sided wire frame. This ingenious panel structure effectively resists deformation, even under the strain of excessive wind pressure.
The skeleton filter material is distributed with meticulous precision across the entire filter, thanks to a highly sophisticated and intricate manufacturing process.
The frame's design is ingeniously simple yet functional, ensuring that filter core replacement is not only easy but also extremely convenient, making maintenance a breeze.
Nominal Size inches | Actual Size mm | Rated Airflow m/s | Initial Pressure Pa | Final Pressure Pa | AVerage arrestance % | Filter Object um | Filtration class |
12*24*2 | 295*595*46 | 1600 | <40 | ≤250 | 95 | ≥5 | G4 |
20*20*2 | 495*495*46 | 2200 | <40 | ≤250 | 95 | ≥5 | G4 |
20*24*2 | 495*595*46 | 2700 | <40 | ≤250 | 95 | ≥5 | G4 |
24*24*2 | 595*595*46 | 3200 | <40 | ≤250 | 95 | ≥5 | G4 |




You can effortlessly reduce expenses by reusing the original frame, ensuring cost-effectiveness over time.
Experience superior dust resistance and excellent dust collection efficiency with ease of installation, making it a seamless choice for any setup.
Enjoy high airflow with minimal resistance, allowing for repeated cleaning and extending the product's service life significantly.
Frame | Aluminium alloy /Galvanized steel/Stainless steel |
Media | Polyester synthetic fiber |
Structure | Panel /Pleated |
Dimension | According to customers' requirements |
Maximum temperature | 98ºC |
Maximum relative humidity | ≤100% |
Fiber class according to EN779 | G4 ( particles ≥ 5microns ) |
Certification | ISO9001, En779 |
Filter Efficiency | 80-95% (Arrestance) |
APPLICATION:
2. Delivering unmatched primary filtration for clean rooms and operating rooms, our system is integral to any purification system, maintaining the highest standards of cleanliness.
3. Designed for peak performance, our primary filtration system is perfect for ventilation systems in settings like purification workshops and air conditioning units, ensuring optimal air quality.
This versatile filter is extensively utilized in industries such as coating, surface treatment, chemical processing, cosmetics, healthcare, automotive, and beyond, showcasing its exceptional adaptability and performance.

Our Mission:
At AILIN, also known as YIFAN, we are driven by the mission to offer top-tier products at the most competitive prices. Our goal is to ensure an unmatched customer experience, focusing on creating a mutually beneficial relationship with every client.
Getting to Our Factory:
• By High-Speed Rail: Make your way to Zhengzhou, where our trading company Ailin operates, or head to Xinxiang, home to our manufacturing company Yifan, both situated in the vibrant Henan province.
• By Airplane: Fly directly to Zhengzhou Xinzheng International Airport, located in the heart of Henan province, to access our facilities.


A wide array of refined filtration solutions: G-level pre-filters, F-level medium bag/pocket filters, H-level HEPA filters, and U-level ULPA filters. We also specialize in a diverse range of high-temperature air filters, oil filters, and water filters to suit various needs.
We take pride in our SGS and ISO9001 certified products, which have made their mark across Europe, North America, Southeast Asia, Africa, and beyond. Our unwavering dedication to quality and exemplary after-sales service has established us as a trusted name in the machinery industry.
WHY CHOOSE US ?
We warmly welcome customer inquiries and are committed to addressing all concerns thoroughly, ensuring comprehensive solutions to any challenges you may face.1. Our commitment to excellence begins with the highest quality raw materials, ensuring that our products are both durable and reliable.
2. Our innovative design team is constantly researching market trends, offering you unique and practical designs tailored to your needs.
3. We promise competitive pricing without compromising quality, ensuring your satisfaction with every purchase.
4. Recognizing the importance of timeliness, we strive to deliver our products to you swiftly and efficiently.
5. We provide customization options to perfectly align with your individual needs and preferences.
6. Our team brings a wealth of industry expertise, ready to offer professional advice and support tailored to your unique requirements.



Q1: Are you a factory or trading company?
A1: We are factory with rich experience in China, and our company has established since 2007.
Q2: Can the product be customized?
A2: Yes, both the product and the packaging can be customized.
Q3: Do you provide samples?
A3: Yes, free sample can be provided but customer needs to pay for the shipping costs.
Q4: How to pay?
Our company accepts various ways of payment, such as T/T , L/C etc.
Q5: How long is the delivery time?
A5: It depends on the order quantity. Usually it takes about 15 to 30 working days after receiving your deposit.
Q6: Do you arrange the shipment?
A6: Yes, our company can arrange the shipment to deliver the goods according to the client's customer's requirements.
Q7: What about the after-sales service?
A7:Our company is responsible for the supplied product ONLINE.