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Combination Air Filter

Product Introduction

In the high-performance air purification market, the trend is moving toward "Total Air Quality" solutions that address multiple threats in a single pass. Our Combination Air Filters represent the pinnacle of this multi-functional approach. At Nantong Lyusen, we specialize in the engineering of composite filter modules that integrate distinct filtration technologies—such as HEPA particle capture, Activated Carbon gas adsorption, and Silver-Ion antimicrobial protection—into a single, high-efficiency cartridge. This "All-in-One" design is critical for compact modern air purifiers, high-end automotive cabins, and specialized medical equipment where space is at a premium but performance cannot be compromised. By manufacturing each layer in our own facility in Nantong, we are able to bond these diverse materials using low-resistance ultrasonic welding or high-purity hot-melt adhesives, ensuring a seamless and efficient transition from one filtration stage to the next.

What makes Lyusen’s combination filters superior is our focus on "Synergistic Efficiency Optimization." It is not enough to simply stack two filters together; doing so often leads to excessive air resistance and reduced fan life. We use advanced computer modeling to optimize the "Air-Flow Resistance Cascade," ensuring that the pre-filter, the carbon layer, and the HEPA media are balanced to provide the highest possible CADR (Clean Air Delivery Rate) with the lowest possible noise. For international OEM partners, this "Plug-and-Play" solution significantly simplifies the supply chain and reduces the labor costs associated with assembling multiple filters. As a factory with 26 years of industrial experience and a high-tech certification since 2020, Nantong Lyusen provides the technical expertise and manufacturing scale needed to build world-class, multi-functional air purification products that meet the highest standards of safety and performance in the global market.

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Detailed Technical Specifications

To assist product designers and procurement managers, Nantong Lyusen provides a comprehensive technical data suite for our combination filter series. We focus on the Cumulative Clean Mass (CCM) and the Filter-to-Frame Airflow Efficiency, ensuring that the composite structure doesn't cause unnecessary pressure drop. We also provide detailed test reports showing the reduction of both particulates (0.3μm) and gaseous pollutants (Formaldehyde/TVOC) in a single test cycle. Below is a data matrix for our most common 3-in-1 and 2-in-1 combination configurations, designed to help you select the optimal performance profile for your specific device.

Configuration Type	Filtration Layers	Particle Efficiency	Gas Adsorption	Initial Resistance
3-in-1 Professional	Pre-filter + H13 + Carbon	99.97% @ 0.3μm	HCHO Removal > 95%	< 80 Pa @ 1m/s
2-in-1 Odor Control	F7 Medium + Impreg. Carbon	ePM2.5 > 80%	Odor / TVOC > 92%	< 50 Pa @ 1m/s
2-in-1 Medical	H14 HEPA + Silver Ion Mesh	99.995% @ 0.3μm	Sterilization > 99.9%	< 120 Pa @ 0.45m/s
"Fresh Air" Composite	G4 + Carbon + Photocatalyst	Coarse Dust Capture	Broad-Spectrum VOCs	< 40 Pa @ 2m/s
Automotive Dual-Mode	Activated Carbon Paper + HEPA	95% @ 0.5μm	Fuel Exhaust / Smog	< 30 Pa @ 1m/s

Beyond performance, we focus on the Structural Integrity of the Composite Bond. We utilize high-precision laminating equipment that applies a microscopic layer of adhesive between the HEPA media and the carbon foam/honeycomb, ensuring that there is no "dead surface" where air cannot pass. Our frames can be customized using ABS plastic, aluminum, or moisture-resistant cardboard, and we offer a variety of sealants (including UL-compliant silicones) to ensure a 100% leak-proof unit. For the international market, all our combination filters are RoHS and REACH compliant, and we provide "Airborne Particle and Gas Decay" reports according to the AHAM and GB/T standards. Whether you need a standard cylindrical filter for a portable purifier or a large-format V-bank combination unit for a commercial AHU, Nantong Lyusen’s technical specifications provide the data-driven foundation for your brand's superior air purification performance.

Primary Industrial Applications

Combination Air Filters are the heart of the High-End Residential Air Purifier market. Consumers today expect their purifiers to handle everything from smoke and kitchen odors to pet dander and viruses. Our 3-in-1 combination modules (Pre-filter + HEPA + Carbon) are the standard solution for these devices, providing a "Complete Protection" marketing claim that resonates with health-conscious families. By integrating these three stages into a single, easy-to-replace cartridge, appliance brands can also improve their after-sales "Filter Subscription" revenue models. We serve some of the world's leading purifier brands, providing them with the high-volume production and consistent quality needed to lead in a competitive global marketplace.

In the Automotive and Luxury Transportation sectors, combination filters are increasingly used to provide a "Pristine Cabin Experience." Modern vehicle cabin filters are no longer just simple dust catchers; they are sophisticated composite units that remove PM2.5 soot, pollen, and the volatile organic compounds (VOCs) released by new interior materials. Our 2-in-1 automotive modules utilize high-activity carbon paper or carbon-loaded foams bonded to a high-efficiency synthetic layer, ensuring that drivers and passengers are protected from both urban smog and the exhaust of the cars around them. This is a critical selling point for premium vehicles in highly polluted urban markets like East Asia and Europe.

Furthermore, our combination filters are vital for Specialized Medical and Industrial equipment. This includes surgical smoke evacuators (which must capture both bio-aerosols and toxic laser fumes), mobile isolation pods, and high-performance digital printing enclosures (which capture both ink mists and VOC solvents). In these applications, the ability to have HEPA-level sterility and carbon-level chemical adsorption in a single compact module is essential for the equipment's portability and ease of maintenance. We also provide these filters for High-Tech Office Buildings and "Smart Homes," where they are integrated into the "Fresh Air Supply" units to ensure that all outdoor pollutants—both particulate and gaseous—are eliminated before the air enters the living space. From a sleek desktop purifier to a high-tech medical device, Nantong Lyusen’s combination filters provide the advanced, all-in-one solution needed for the next generation of air purification technology.

About

Nantong Lyusen Environmental Protection Purification Material Co., Ltd.

Established in 1998, Nantong Lyusen Environmental Protection Purification Material Co., Ltd. is nestled within the Jingyuan Ruigu Eco-Tech City in the heart of Nantong, Jiangsu Province, with a picturesque view of Shanghai across the Yangtze River. As an integrated high-tech enterprise combining science, industry, and trade, we are equipped with advanced production lines and sophisticated testing equipment. We have established a comprehensive and stringent quality assurance system and maintain close collaborative relationships with several key national institutions in Shanghai and Nanjing, focusing on the research, development, and production of air purification products. Recognized as a high-tech enterprise in 2020, we take pride in our innovative spirit and commitment to quality. Our product encompasses a diverse range of air purification materials, air purification, sterilisation and deodorisation devices and hygiene and labor products. Purification material products mainly include but not limited to initial, intermediate, and high-efficiency filter meshes, activated carbon series adsorption filters and filter materials, photocatalyst series filters, cold catalyst series filters, and various high-efficiency antibacterial, mold-resistant, deodorizing filters, as well as a variety of metal filters. These products are not only advanced in domestic performance and quality but also meet the standards of international counterparts. As a famous China Combination Air Filter Factory and Combination Air Filter Suppliers. Our products are a staple for renowned air conditioning enterprises, air purifier manufacturers, domestic mask producers, and automotive air conditioning manufacturers both domestically and internationally, with a global reach extending to Japan, Korea, and the European and American markets. The company has successfully passed the ISO 9001 international product quality management system certification. Adhering to the business philosophy of "Quality First, Reputation as the Core, Management as the Foundation, and Service with Sincerity," we have earned the trust and praise of our customers through our stable product performance, high quality, reasonable pricing, prompt delivery, and genuine service. With a fresh and dynamic approach, we warmly welcome friends from both domestic and international markets to visit and provide guidance. We look forward to creating a brilliant future together with our vast clientele and contributing to a comfortable and clean environment for humanity.

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