Our ultra high-efficiency filters comply with EN 1822 standards, with filtration levels covering U15, U16, and U17, achieving filtration efficiencies of 99.9995%, 99.99995%, and 99.999995% for MPPS (Most Penetrating Particle Size), effectively intercepting ultrafine particles of 0.1-0.3μm. The products are widely used in semiconductor, lithium battery, precision manufacturing, nuclear power, and biopharmaceutical applications where cleanliness requirements are extremely high. Sizes, frame material (aluminum alloy/stainless steel/galvanized sheet), and separator types (divided/undivided/liquid seal) can be customized based on customer needs.

In the energy and metal smelting fields, our ultra high-efficiency filters are mainly applied in: workshops for the production of lithium battery anodes and cathodes (to prevent metal contamination), cleanrooms for photovoltaic silicon wafers and battery cells, ventilation and emission systems in nuclear power plants (working with radioactive particle interception), waste gas purification for rare metal refining and powder metallurgy, and filtering at the inlet of gas turbines. Leveraging over 20 years of filtration technology accumulation, we can recommend the best solution based on specific conditions (temperature, humidity, corrosive gases).

Cleantop has obtained ISO 9001, ISO 14001, and ISO 45001 system certifications, and in 2024 received IATF16949 automotive industry quality management system certification and GMP certification for medical products, fully meeting compliance requirements for high-end manufacturing clients in new energy vehicle batteries and pharmaceuticals. Additionally, our products have obtained international certifications such as European BSC1, U.S. EPA, NSF, and SOP, and are exported in bulk to markets including Europe, the United States, Japan, and South Korea. Each ultra high-efficiency filter comes with an independent scanning inspection report (MPPS scanned individually).

Cleantop has a 50,000㎡ production base, including a 20,000㎡ clean workshop (covering ISO 5-ISO 7 levels), ensuring that ultra high-efficiency filters are assembled in a dust-free environment to eliminate cross-contamination. We have a nationally recognized CNAS testing center, and each ULPA filter undergoes 100% individual MPPS scanning testing, air resistance testing, and sealing leak testing according to EN 1822 standards, with uniquely numbered test reports provided to ensure consistent performance across batches and traceability.

Yes. As a manufacturer with over 20 years of experience in the filtration industry, we have a mature technology accumulation of over a thousand filtration solutions and robust OEM/ODM capabilities. Customizable aspects include: size (non-standard specifications), frame material (aluminum profiles/stainless steel 304/316/galvanized steel/MDF board), filter materials (fiberglass/PTFE), separator types, sealing adhesives (polyurethane/silicone), logo silkscreen printing, color boxes, and neutral packaging. Our R&D team can collaborate with customers on drawings or application requirements for joint development.

The MOQ for standard specification products is generally 50-100 units, and the MOQ for custom specifications depends on the complexity of the structure, usually starting from 100-200 units, with flexibility for new customers and sample orders. Standard product delivery time is 7-15 days, while the delivery time for large custom orders is usually 25-35 days. The company has multiple automated production lines and sufficient raw material inventory to support urgent orders and long-term stable supply needs.

The lifespan of ULPA ultra high-efficiency filters depends on the configuration of the upstream pre-filters, the concentration of dust in the air, and the running time, generally around 3-5 years under normal conditions. We recommend that customers monitor pressure differentials (replace when the terminal resistance reaches 2-2.5 times the initial resistance) and conduct regular DOP/PAO leak testing to make judgments. We can provide customers with a complete three-level filtration system solution (G4 pre-filter + F8/F9 medium efficiency + U15/U16 end filter) to effectively extend the lifespan of ULPA filters and reduce overall operating costs.

We provide a quality traceability commitment for each ultra high-efficiency filter that leaves the factory, standard with a 12-month warranty period (extendable based on usage conditions upon negotiation). If verified as a quality issue with the product, we offer free replacement or refund services. The CNAS testing center can assist customers in conducting third-party performance re-testing and issuing authoritative reports. Furthermore, our technical team can provide installation guidance, on-site leak testing (PAO testing) training, and optimization recommendations for filtration systems to ensure customers have no worries afterwards.