Most overseas buyers evaluating a water purifier supplier ask the same three questions: can this factory hit our volume, can it hold our quality standard, and can it build the product under our own brand? Guangdong Lesso Water Purification Technology Co., Ltd. — known internationally as Lesso Water — answers those questions with a 30,000+ square meter plant in Shunde, China, eight cleanroom assembly lines, twelve fully automatic RO membrane winding lines, and more than a decade of OEM/ODM work for appliance and water treatment brands across North America, Europe and Asia.
The Comfort of a Listed Parent Company
Lesso Water was founded in 2014 with a registered capital of RMB 60 million and operates as a wholly owned subsidiary of China Lesso Group Holdings Co., Ltd. (HKEX: 02128.HK). That matters to distributors and brand owners for practical reasons. China Lesso reported group revenue of RMB 30.868 billion in 2023, and its manufacturing network spans more than 30 production bases across 19 Chinese provinces plus overseas locations. The group operates 39 national high-tech enterprises, employs over 1,000 scientific and technical staff, and holds 1 national enterprise technology center, 2 postdoctoral workstations and 6 CNAS-accredited laboratories.
For a buyer, this translates into supply continuity, access to deep materials and molding expertise, and a partner whose quality systems are audited within a much larger industrial structure. The Shunde site itself sits in Area B of the Lesso Industrial Park — the heart of China's home appliance cluster — and shares its campus with Guangdong Weibo Technology Co., Ltd.
Manufacturing Engineered for Scale and Repeatability
Lesso Water is recognized as a National High-Tech Enterprise and holds 216 valid patents. The production footprint is deliberately vertical: an assembly plant, an evaluation and test center, an RO membrane winding workshop, an injection molding workshop and a dedicated filter cartridge workshop all operate on the same site.
Key capabilities include:
Eight Class-100,000 cleanroom production lines for purifier assembly, supported by advanced production and inspection equipment.
Twelve fully automatic reverse osmosis membrane winding lines, giving customers in-house control over one of the most performance-critical components in any RO system.
Combined annual output exceeding 3 million units across water purifiers and air purifiers.
A structured new-product evaluation process and in-process quality control system, run by technical, quality and manufacturing specialists with long industry experience.
For brand owners, in-house membrane winding and cartridge production means fewer external dependencies, tighter tolerance control and a shorter path from prototype to mass production.
A Portfolio That Covers the Whole Water Journey
Lesso Water designs, develops and manufactures water purifiers, air purifiers and filter cartridges. Under its two own brands — LESSO and APURELI — the company positions itself as a solutions provider for whole-house and commercial water treatment. The range includes household RO reverse osmosis purifiers, pre-filters, whole-house purification systems, commercial water purifiers and air purifiers.
That breadth is useful during program planning: a distributor building a category can source a complete water treatment line — from point-of-entry protection through to point-of-use drinking water and indoor air quality — from a single manufacturing partner, with consistent branding, documentation and quality standards.
Research Partnerships Behind the Product
Technical development is not outsourced to chance. Lesso Water collaborates with leading Chinese universities, combining academic research resources with its own production experience:
Tsinghua University — a strategic cooperation on healthy drinking water quality, including the establishment of an experimental base.
Peking University — a joint team exploring ultrasonic liquid level sensing technology, addressing the aging, leakage and continuous-run problems associated with mechanical float valves.
Harbin Institute of Technology — research into micro-molecular activated water technology, resulting in a national invention patent.
These projects address real failure points in the field, which is often what separates a reliable OEM partner from a pure assembly operation.
An OEM/ODM Track Record With Recognized Brands
Lesso Water is an established OEM/ODM specialist for water purifiers and air purifiers, serving more than 60 well-known brands in the domestic Chinese market, including Philips, Haier, Honeywell, AUX, Litree, Quanlai and Japan's Rinnai, alongside European partners. Its export-oriented customer base includes US brands such as Stokk, Sans, AQUATRu, Thereye and SLEVOO, Russia's Garlyn, Poland's Philipiak and Korea's Cuckoo.
Its customer base concentrates in smart home appliances, internet-driven brands and home living categories — buyers who typically need fast development cycles, private-label flexibility, packaging support and consistent unit-to-unit quality across repeat orders.
Where These Products Are Used
Products from this portfolio are typically deployed in household kitchens under the sink or on the counter, at the entry point of whole-house plumbing systems, and in light commercial and office settings where drinking water and indoor air quality need to be managed at scale. Pre-filters protect downstream appliances and membranes, RO purifiers deliver drinking water, and air purifiers address indoor particulate concerns — a combination that suits distributors serving residential projects, retail channels and commercial fit-outs.
What Smart Buyers Check Before Signing
In a category crowded with trading companies, three indicators usually reveal the real manufacturer: whether the RO membrane is wound in-house, whether filter cartridges are produced under controlled temperature and humidity, and whether there is a genuine evaluation laboratory behind the claim. Cleanroom assembly, in-house injection molding and a dedicated test center are the operational signals that a supplier can sustain quality when volumes rise — and they are visible on the Lesso Water shop floor rather than only in a brochure. The company also continues to invest in its stated commitments of being more professional, faster and more cost-efficient, with a customer-first approach to service.
Start a Conversation
Whether you are developing a private-label RO purifier, expanding a whole-house water range, or sourcing air purifiers alongside a water treatment line, the Lesso Water team can discuss specifications, program scope and sampling directly.
Company: Guangdong Lesso Water Purification Technology Co., Ltd.
Address: Area B, Lesso Industry Zone, Longjiang Town, Shunde, Foshan, Guangdong, China
Postal code: 528318
Contact: Li Xuliang
Phone: 15922229881
Landline: 400-168-2128
Email: lixuliang1982@163.com
Corporate website: www.lesso.com/product/water-purifier/
Water division site: www.lessowater.com
Send your product brief, target market and expected volumes, and the team will respond with the most suitable platform options for your program.
