As the most critical pre-protector for central air conditioning and industrial fresh air systems (HVAC). Cleantop bag air filter uses a unique multi-bag structure design, effectively increasing the filtration area. While ensuring a high air velocity of 2.5m/s, it efficiently intercepts dust particles larger than 5μm in the air, significantly prolonging the lifespan of expensive end-stage high-efficiency (HEPA) filters, thus substantially reducing operating costs for enterprises.
Get Industrial Filtration Solutions and QuotesCompared to conventional plate filters, the bag structure significantly expands the effective unfolding area of the filter material. This means it can accommodate several times more dust particles (ultra high dust holding capacity), effectively maintaining airflow, reducing the resistance of the air conditioning system's fan during operation, and lowering energy consumption.
As a perfect mid-efficiency/pre-filter barrier (covering G4 to F9 grades) in fresh air and exhaust systems, it can intercept the vast majority of large dust particles (1-5μm) in advance, greatly reducing the burden on end-stage medical-grade and industrial-grade high-efficiency filters (HEPA), exponentially extending their replacement cycles and directly lowering maintenance budgets.
Utilizing a robust aluminum alloy or galvanized outer frame, paired with high-quality non-woven or fiberglass filter bags sewn using ultrasonic technology. Even in complex industrial ducts where the rated air velocity reaches 2.5m/s, it ensures the filter bag does not deform, rupture, or dust leakage.
| Efficiency Grade (过滤等级) | Pre-filter to Mid-efficiency Grade: G4 / M5 / M6 / F7 / F8 / F9 |
|---|---|
| Core Filter Material (核心滤材) | High Flow Non-woven Fiber or Flame Retardant Fiberglass |
| Frame Material (外框材质) | Aluminum Frame / Galvanized Steel Frame |
| Rated Operating Air Velocity | 2.5 m/s |
| Common Size Options (Width × Height × Depth) |
• 594 × 594 × 534 mm (24"×24"×21") - Commonly equipped with 6 / 8 / 10 bags • 594 × 492 × 534 mm (24"×20"×21") - Commonly equipped with 6 / 8 bags • 289 × 594 × 534 mm (12"×24"×21") - Commonly equipped with 3 / 4 bags *Depth sizes like 381mm (15") are also available |
| Core Application Scenarios | Pre-filtration in commercial building central air conditioning, cleanroom fresh air systems, HVAC filtration systems in electronics, pharmaceutical, and coating industries |
| Customization Services (OEM) | Based on 20 years of manufacturing experience and CNAS testing center, fully supports non-standard customization of sizes and number of bags |
Cleantop has 6 cleanrooms and a comprehensive international certification system (ISO, IATF16949, etc.). Whether you need replacement parts of standard models or bespoke sizes for complex systems, our engineering team can provide you with the highest cost-effective solutions.
Inquire Now and Get Customized QuotesOur bag filters are available in various efficiency grades such as G4, M5, M6, F7, F8, and F9 according to ISO 16890 and EN 779 standards. They are suitable for applications in commercial central air conditioning, ventilation systems (HVAC), industrial air supply, cleanroom pre-filtration, subways, and large commercial complexes. Customers can choose the appropriate grade based on site air volume, dust holding capacity, and system air resistance requirements. Our technical team can provide professional selection advice.
We use imported synthetic fibers or fiberglass as filter media, characterized by high dust holding capacity, low resistance, humidity resistance, and low shedding. The frame material can be galvanized steel, aluminum alloy, or plastic. Under standard HVAC conditions (air velocity 2.5 m/s), the service life typically ranges from 6 to 12 months, depending on onsite air quality and operating time. Each batch of products undergoes performance testing at our CNAS certified testing center to ensure data authenticity and reliability.
We fully support OEM/ODM customization. The outer frame size, bag length, number of bags (3 bags/5 bags/6 bags/8 bags/10 bags), filtration grade, frame material, labels, and packaging can all be customized per customer requirements. With over 20 years of R&D experience and thousands of filtration solutions available, we can quickly respond to customer drawing or sample requests, typically completing sample deliveries within 3-7 working days.
The company is certified under ISO 9001, ISO 14001, and ISO 45001 management systems and has received IATF 16949 automotive industry certification and GMP certification for medical supplies in 2024. Our products are exported to many countries, including Europe, the USA, Japan, and South Korea, and we hold certifications such as Europe's BSC1, the US EPA, NSF, and SOP, fully meeting compliance requirements for market entry in Europe and the USA, allowing customers to procure and distribute with confidence.
We have a factory spanning 50,000 square meters and 20,000 square meters of six cleanrooms, equipped with a state-level CNAS accredited testing center. Our quality control encompasses incoming material inspection (IQC), process inspection (IPQC), finished product inspection (FQC), and outgoing inspection (OQC). Each batch of filters undergoes tests for filtration efficiency, resistance, dust holding capacity, and structural strength, providing detailed inspection reports to ensure consistency in performance across batches.
The MOQ for standard specifications is usually 100-200 pieces, and the MOQ for customized specifications is subject to negotiation based on specific requirements. The usual delivery time for standard orders is 15-25 days, while large volume or highly customized orders may take 30-45 days. Our production base in Zhongshan has sufficient monthly capacity to ensure stable delivery during peak seasons and for large projects, and we support various trade terms such as FOB and CIF.
We welcome customers to request samples for testing. Free samples of standard specifications are available; customers only need to cover international shipping costs. Fees for customized samples will be charged based on development difficulty, which can be deducted from the order cost after bulk ordering. Each sample comes with a performance test report issued by the CNAS testing center, making it convenient for customers to perform comparative validation and terminal certification.
Bag filters are packaged with independent PE bags + customized color boxes/corrugated cartons, with internal reinforcement to prevent deformation during transportation. We support full brand customization including customer logos, color boxes, labels, and instruction manuals, catering to the needs of traders and brand owners. Export packaging complies with international logistics standards and we can provide container optimization solutions to reduce customer logistics costs.
