In response to modern household/commercial air purification equipment's pursuit of ultra-thin volume, Cleantop has specially developed the Flat Panel HEPA/Activated Carbon Composite Filter. Utilizing MAX flat compact structure, it perfectly combines high-efficiency HEPA particle interception and high-iodine-value activated carbon adsorption in an extremely thin profile. One filter effectively addresses PM2.5 particulate pollution and indoor formaldehyde and odor issues, greatly simplifying the internal structural design of purifiers while reducing the end user's consumable replacement costs.
Get Customized Purifier Solutions and QuotesModern household purifiers pursue ultra-thin designs. We employ high-density folding and composite technology to compress the HEPA layer and activated carbon layer into one flat filter. This maximizes space utilization, effectively reducing overall thickness and enhancing product aesthetic design flexibility and commercial competitiveness.
A single dust filter cannot address gaseous pollution, while multilayer filter separation designs increase air flow resistance and user maintenance difficulty. Our dual-in-one composite filter simultaneously addresses particulates (PM2.5, pollen) and harmful gases (formaldehyde, second-hand smoke, odors), significantly enhancing consumer experience.
Core materials include PP, PP+PET composite materials, and PTFE microporous membranes. Based on customer terminal product's CADR (Clean Air Delivery Rate) and energy efficiency criteria, we can flexibly customize filtration efficiency levels and activated carbon ratios, fully ensuring purification needs in different scenarios.
| Product Name | Flat Panel HEPA/Activated Carbon Composite Filter (Flat Panel HEPA & Carbon Composite Filter) |
|---|---|
| Physical Structure Characteristics | MAX flat design, ultra-low wind resistance, exceptionally high space utilization |
| Core Dust Removal Material (Media) | PP (Polypropylene) / PP+PET composite material / PTFE Polytetrafluoroethylene |
| Core Odor Removal Material | High-quality honeycomb activated carbon / Modified formaldehyde removal carbon particles |
| Filtration Performance (Efficiency) | Dust removal grade and CADR value are entirely determined by the selected filter material and customer equipment fan parameters |
| Main Application Terminals | Household/commercial air purifiers, desktop mini-purifiers, humidifying purification integrated machines, dehumidifiers |
| Specifications and Size Customization | 100% supports OEM flexible customization. Can be made to any length, width, thickness, and frame sealing treatment according to customer chassis requirements. |
| Quality Certification System | Certified by ISO9001/14001 and IATF16949. Equipped with a national-level recognized CNAS testing center, ensuring strict control of wind resistance, efficiency, and odor decay indicators before leaving the factory. |
Whether you are looking for standardized consumables with high cost-effectiveness as OEM or customizing ultra-thin and high-performance exclusive composite filters for your latest smart air purifier, Cleantop, with over 20 years of experience and thousands of filtration solutions, will be your best manufacturing source.
Contact Engineering Team / Apply for Custom Solutions and SamplesOur flat panel HEPA activated carbon composite filter employs a dual-layer composite structure, with the HEPA layer achieving a filtering efficiency of ≥99.97% for particles of 0.3μm (H13 grade, can be upgraded to H14 per customer request), effectively intercepting PM2.5, pollen, dust mites, bacteria, and other particulates; the activated carbon layer utilizes high-iodine value coconut shell or coal-based activated carbon, exhibiting excellent adsorption capacity for formaldehyde, TVOC, and other gaseous pollutants. One filter simultaneously addresses particulate purification and odor removal/formaldehyde needs, making it especially suitable for household air conditioning and fresh air systems.
Under normal household usage conditions (8-10 hours of operation daily), the recommended lifespan is 6-12 months, depending on local air quality and usage frequency. The product is compatible with mainstream wall-mounted, cabinet-style, and central air conditioning systems in the market. We support size customization based on the air conditioner model or drawings provided by the customer, with thickness options ranging from 5mm to 50mm, and frame materials available in paper, plastic (ABS/PP), or aluminum frames.
Cleantop has obtained certification for ISO 9001, ISO 14001, and ISO 45001, and products comply with multiple international standards including European BSC1, US EPA, NSF, and SOP. In 2024, we newly acquired IATF16949 (automotive industry) and GMP certification for medical products. Our products are consistently exported to markets in Europe, the United States, Japan, and South Korea, and we can provide compliance testing reports such as CE, RoHS, and REACH to fully support customers' overseas market access.
We support full-process OEM/ODM services. Backed by over 20 years of R&D accumulation and a library of over a thousand filtration solutions, we can customize filter sizes, material specifications (HEPA grades, activated carbon basis weight), frame structures, and colors according to customer needs. For packaging, we can offer neutral packaging, customer-branded color boxes, custom labels, multilingual instruction manuals, and exclusive barcodes to help brand owners and traders quickly establish their own product lines.
Cleantop has a factory area of 50,000 square meters, of which 20,000 square meters is a clean workshop (six in total), ensuring that the production environment has no cross-contamination. The company has a nationally recognized CNAS testing center, equipped with professional equipment such as particle counters, wind tunnel test benches, and formaldehyde/VOC detectors, conducting full tests on each batch of raw materials and finished products for filtration efficiency, resistance, dust holding capacity, adsorption performance, etc. We conduct 100% appearance inspection + AQL 1.0 sampling inspection before shipment to ensure batch consistency and quality stability.
The MOQ for standard specification products is usually 500-1000 pieces, and the MOQ for customized specifications is negotiated based on structural complexity, generally ranging from 2000-3000 pieces. The usual lead time is 25-35 days after ordering, and samples can be sent out within 7-10 days. We provide free samples for customers to test performance and validate the market, with sample customization fees refundable after the formal order, helping customers quickly validate products with low risk.
As a professional filtration manufacturer established in 2002, we possess a dedicated R&D team and CNAS laboratory, enabling us to offer customers filter material selection consulting, structural optimization, joint development of new products, and performance testing reports as technical support. In terms of after-sales, we provide a 12-month warranty, a dedicated customer manager for one-on-one communication, and quick responses to quality issues (with feedback and solutions within 48 hours), and can offer stockpiling and VMI inventory management services based on seasonal customer demand.
