As the demand for lithium batteries surges—powering everything from smartphones to electric vehicles—the need to recycle them responsibly has never been more critical. Yet, behind the scenes of this green revolution lies a hidden challenge: air pollution. Harmful emissions from lithium battery recycling processes, if unchecked, can undo the environmental benefits of recycling itself. That’s where air pollution control systems step in—silent guardians ensuring that sustainability doesn’t come at the cost of clean air. In South Korea, a hub for advanced recycling technology, five suppliers stand out for their commitment to innovation, reliability, and environmental stewardship in this niche yet vital field.
1. EcoClean Systems Korea: Pioneering Dry Process Efficiency
EcoClean Systems Korea has long been a household name in South Korea’s environmental technology sector, and their air pollution control solutions for lithium battery recycling plants are a testament to why. Founded in Seoul in the early 2000s, the company has grown from a small startup to a national leader by prioritizing “clean innovation without compromise.”
Their flagship offering, the EcoClean AP-Li Series , is specifically designed for lithium battery recycling plants with capacities ranging from 500 kg/h to an impressive 2,500 kg/h —a range that caters to both small-scale operations and large industrial facilities alike. What sets this system apart is its integration of advanced dry process technology. Unlike wet process systems that rely on water (which can create secondary waste), EcoClean’s dry separation and filtration mechanisms use high-efficiency cyclones, activated carbon beds, and HEPA filters to capture 99% of particulate matter, volatile organic compounds (VOCs), and hazardous gases like hydrogen fluoride and sulfur dioxide.
But EcoClean doesn’t just stop at compliance—they aim for excellence. The AP-Li Series is certified to meet South Korea’s strict Air Quality Conservation Act standards and the EU’s REACH regulations, giving international clients peace of mind when exporting recycled materials. What truly resonates with customers, though, is the company’s dedication to after-sales support. “We don’t just sell a system; we build a partnership,” says Park Ji-hyun, EcoClean’s sales director for recycling solutions. “Our team provides on-site training, 24/7 technical hotline support, and even annual maintenance checks to ensure your system runs at peak efficiency for years.”
In 2024, EcoClean partnered with a major lithium battery recycler in Busan, equipping their new facility with three AP-Li 2000 units. Within six months, the recycler reported emissions reductions exceeding their initial targets by 35%, while operational costs dropped due to the system’s energy-efficient design. For plant managers who value reliability and long-term sustainability, EcoClean Systems Korea is more than a supplier—it’s a trusted ally in the fight for cleaner air.
2. AirPure Tech Solutions: Where Innovation Meets Customization
If EcoClean excels in scalability, AirPure Tech Solutions shines in customization. Based in Daegu, this mid-sized firm has made a name for itself by designing air pollution control systems that adapt to the unique needs of each lithium battery recycling plant. “No two plants are the same,” explains Lee Chang-ho, AirPure’s chief engineer. “A facility recycling small consumer batteries will face different emission challenges than one processing EV battery packs. We tailor our solutions to fit.”
AirPure’s Li-Clean Custom Series is a modular system that can be configured with wet or dry process components, depending on the plant’s specific emissions profile. For example, if a plant primarily handles lithium iron phosphate (LFP) batteries—known for lower VOC emissions but higher particulate matter—AirPure might emphasize dry cyclones and electrostatic precipitators. For nickel-cobalt-manganese (NCM) batteries, which release more toxic gases, they’ll integrate wet scrubbers and chemical absorption towers into the design. This flexibility has made them a favorite among specialized recyclers, including those focusing on rare earth metal recovery from lithium battery waste.
One of AirPure’s most innovative features is their SmartAir™ Monitoring System , a real-time data platform that tracks emissions levels, filter performance, and energy usage. Plant operators can access the dashboard via a mobile app, receiving alerts if pollutant levels rise above safe thresholds or if a filter needs replacement. “It’s like having a 24/7 environmental watchdog,” says Kim Soo-jin, operations manager at a lithium battery recycling plant in Incheon that installed AirPure’s system in 2023. “We’ve cut down on unexpected downtime by 40% because we can address issues before they become problems.”
AirPure also prides itself on sustainability in its own operations. The company uses recycled materials in 60% of its system components and offsets 100% of its carbon emissions through reforestation projects in South Korea’s Jeju Island. For clients who want their environmental commitment to extend beyond compliance, this “green from the ground up” approach is a major draw. As Lee puts it: “We’re not just controlling pollution—we’re building a circular economy, one custom system at a time.”
3. GreenGuard Environmental: Trusted for Turnkey Solutions
For recycling plant owners who prefer a “one-stop shop” experience, GreenGuard Environmental is the go-to choice. Headquartered in Seoul, this industry veteran has been around since the 1990s, initially focusing on general air pollution control before pivoting to specialized solutions for the battery recycling boom. Today, they’re known for delivering end-to-end, turnkey air pollution control systems that include everything from design and installation to staff training and regulatory compliance support.
GreenGuard’s Li-Shield Complete Package is designed for lithium battery recycling plants of all sizes, but it’s particularly popular with new entrants to the industry. “Starting a recycling plant is overwhelming enough without having to coordinate with multiple suppliers,” says Park Min-ji, GreenGuard’s project manager. “Our turnkey approach means we handle every detail—from securing permits to testing the system—so our clients can focus on their core business.”
The Li-Shield system includes a pre-treatment stage (to remove dust and large particles), a primary filtration stage (using either dry bag filters or wet scrubbers), and a polishing stage (activated carbon for residual VOCs). What makes it stand out is GreenGuard’s in-house team of regulatory experts, who ensure the system meets not just South Korean standards but also global benchmarks like the U.S. EPA’s Battery Rule and China’s Regulations on the Management of Waste Batteries . This is especially valuable for South Korean recyclers looking to export recycled cobalt, nickel, or lithium to international markets.
In 2024, GreenGuard partnered with a government-backed lithium battery recycling initiative in Gwangju, supplying a complete air pollution control system for their pilot plant. The project, which aimed to demonstrate best practices in sustainable recycling, was a resounding success, with emissions consistently measuring 50% below the legal limit. “GreenGuard didn’t just deliver equipment—they delivered peace of mind,” says the initiative’s lead engineer, Choi Jung-ho. “Their team walked us through every step, even helping us prepare reports for environmental auditors.” For plant owners who want a stress-free, all-in-one solution, GreenGuard Environmental delivers reliability with a personal touch.
4. CleanAir Engineering Co.: Leaders in High-Capacity Performance
When it comes to handling the largest lithium battery recycling plants in South Korea, CleanAir Engineering Co. is the name that comes to mind. Based in Ulsan—a major industrial hub—this company specializes in high-capacity air pollution control systems, with a focus on plants processing 2,000 kg/hour or more of lithium battery waste. Their flagship MegaLi-Clean System is engineered to handle the intense emissions generated by large-scale shredding, pyrolysis, and metal recovery processes.
CleanAir’s secret weapon is their Multi-Stage Filtration Array , which combines dry cyclones, ceramic filters, and catalytic converters to tackle even the most complex emission mixtures. For example, during the pyrolysis of lithium batteries, temperatures can exceed 800°C, releasing a cocktail of gases including CO, CO₂, and toxic fluorides. The MegaLi-Clean System’s ceramic filters—made from heat-resistant nano composite materials—capture particulates at high temperatures, while catalytic converters break down harmful gases into harmless byproducts like water vapor and carbon dioxide.
What truly sets CleanAir apart, though, is their focus on energy recovery. The system includes a heat exchanger that captures waste heat from the filtration process and repurposes it to power other plant operations, such as drying recycled materials or heating offices. “At high capacities, energy costs can eat into profits,” explains CleanAir’s CEO, Han Dong-woo. “Our systems don’t just control pollution—they help plants become more energy-efficient, turning a cost center into a potential revenue driver.”
In 2025, CleanAir secured a contract with South Korea’s largest lithium battery recycler, which operates a plant in Busan with a capacity of 5,000 kg/hour. The recycler needed a system that could handle their expansion while meeting South Korea’s new, stricter emissions limits set to take effect in 2026. CleanAir’s MegaLi-Clean System not only met these requirements but also reduced the plant’s energy bills by 25% through heat recovery. For industrial-scale recyclers, CleanAir Engineering Co. proves that high capacity doesn’t have to mean high environmental impact—or high costs.
5. Sustainable Air Control Ltd.: The Eco-Friendly Underdog
Rounding out our list is Sustainable Air Control Ltd. (SAC), a small but mighty supplier based in Daejeon. While they may not have the brand recognition of EcoClean or CleanAir, SAC has carved a niche by prioritizing eco-friendly materials and low-carbon manufacturing in their air pollution control systems. “We believe the solution to pollution shouldn’t create new environmental problems,” says founder and CEO, Yoon Seo-yeon, a former environmental scientist. “Every component in our systems is chosen with sustainability in mind—from recycled steel frames to biodegradable filter media.”
SAC’s EcoLi-Control System is a compact, energy-efficient solution ideal for small to mid-sized lithium battery recycling plants (500–1,500 kg/hour capacity). The system uses a combination of dry electrostatic precipitators and plant-based activated carbon filters—sourced from sustainably harvested coconut shells—to capture emissions. Unlike synthetic filters, which end up in landfills, SAC’s filters are biodegradable or can be incinerated to recover energy, aligning with the circular economy principles of battery recycling itself.
SAC also offers a unique CarbonNeutral Package , where for every system sold, the company plants 100 trees in South Korea’s deforested areas and offsets the system’s manufacturing carbon footprint through renewable energy credits. “Our clients aren’t just buying a filter—they’re investing in a greener future,” Yoon explains. This commitment to sustainability has resonated with ethical investors and ESG-focused recyclers, including a cooperative of small-scale battery recyclers in Gyeonggi Province that adopted SAC’s systems in 2024.
While SAC may not offer the same high-capacity options as CleanAir or the customization of AirPure, their dedication to environmental integrity has earned them a loyal following. As one client put it: “With SAC, we’re not just complying with regulations—we’re living our values.” For recyclers who want their air pollution control system to reflect their commitment to sustainability, SAC is a refreshing choice in an industry often focused solely on technical performance.
| Supplier | Capacity Range | Process Type | Key Compliance Standards | Standout Feature |
|---|---|---|---|---|
| EcoClean Systems Korea | 500–2,500 kg/h | Dry process (HEPA filters, activated carbon) | South Korea Air Quality Act, EU REACH | 24/7 technical support and annual maintenance |
| AirPure Tech Solutions | 500–2,000 kg/h | Custom (wet/dry hybrid, modular design) | South Korea Air Quality Act, US EPA Battery Rule | SmartAir™ real-time monitoring dashboard |
| GreenGuard Environmental | 500–3,000 kg/h | Multi-stage (dry/wet hybrid, turnkey design) | South Korea Air Quality Act, China Waste Battery Regulations | All-in-one regulatory compliance support |
| CleanAir Engineering Co. | 2,000–5,000+ kg/h | Dry (ceramic filters, catalytic converters) | South Korea Air Quality Act (2026 standards), EU REACH | Waste heat recovery for energy efficiency |
| Sustainable Air Control Ltd. | 500–1,500 kg/h | Dry (biodegradable filters) | South Korea Air Quality Act, ISO 14001 | CarbonNeutral Package (recycled materials, reforestation) |
Choosing the right air pollution control system for your lithium battery recycling plant is more than a technical decision—it’s a commitment to protecting the planet, your workers, and your community. In South Korea, these five suppliers—EcoClean Systems Korea, AirPure Tech Solutions, GreenGuard Environmental, CleanAir Engineering Co., and Sustainable Air Control Ltd.—lead the way, each offering unique strengths to meet the diverse needs of the recycling industry.
Whether you prioritize scalability, customization, turnkey support, high-capacity performance, or environmental integrity, there’s a supplier on this list ready to partner with you. As lithium battery recycling continues to grow, these companies remind us that sustainability and innovation can—and must—go hand in hand. After all, the goal isn’t just to recycle batteries—it’s to build a world where clean energy truly means clean air for everyone.
