About Yiding

Air filter manufacturer in Suzhou, China — since 2008.

Founded in Suzhou in 2008, Suzhou Yiding Purification Equipment Co., Ltd. designs, manufactures and installs air filtration products and cleanroom equipment. We cover the full chain — production, sales, installation and testing — so customers work with one accountable partner from specification to start-up.

Our filters and equipment protect production lines for internationally listed solar and electronics manufacturers, and are in service in South Africa, Bahrain, Thailand, Australia and the Nordic countries.

2008: Founded in Suzhou, Jiangsu, China
28: Standard product families, plus custom builds
5: Overseas regions served on four continents
ISO: 9001 & 14001 certified
4: National patents

What we make

From a single filter to a complete cleanroom.

Every product can be built to your dimensions, media, frame material and efficiency grade — including replacements for filters already installed in your system.

Air filtersPanel, pocket, cell and HEPA / ULPA filters from prefiltration to 99.999% at 0.3 µm, plus activated carbon and chemical filters for gas-phase contaminants.
Cleanroom equipmentFan filter units, room-side replaceable HEPA modules, air showers, pass boxes, clean workstations, clean booths and ceiling grid systems.
Cleanroom engineeringCleanroom planning, design, construction and refurbishment, HVAC maintenance and on-site testing — plus industrial exhaust, denitrification and dust-removal systems.

Manufacturing & quality

Made in our own factory, proven in our own lab.

Every Yiding filter is produced and inspected in-house in Suzhou. Owning the chain from development to volume production lets us control quality, lead time and cost on every order, from a single replacement filter to a full project.

Clean productionFilters are assembled, inspected and packed in clean workshops, so they arrive ready for critical environments.
In-house testingOur own instruments for air velocity measurement, HEPA leak scanning and particle counting — in the factory and on site.
Research cooperationIndustry–university–research cooperation with Tsinghua University, Shanghai University and the Chinese Academy of Sciences.

Customers & markets

Trusted by global manufacturers.

Leading photovoltaic and electronics manufacturers — including Canadian Solar, JinkoSolar, Cyntec, Luxsan Technology, JTPV and Yingfa Deyao — rely on Yiding to keep their production air clean and stable. Our products are exported with after-sales support to:

AfricaSouth Africa
Middle EastBahrain
Asia-PacificThailand
OceaniaAustralia
EuropeThe Nordic countries

Certifications & patents

Certified systems, patented designs.

Our quality and environmental management systems are certified to international standards, and our engineers hold national utility-model patents granted by the China National Intellectual Property Administration (CNIPA).

ISO 9001Quality management — documented processes from design and purchasing to production, inspection and delivery.
ISO 14001Environmental management — responsible manufacturing that controls our environmental impact.
Low-noise fan filter unit with uniform air dischargePatent ZL 2025 2 0089123.0 · granted 2025
Chemical filter with multi-stage separation and purificationPatent ZL 2023 2 0572494.5 · granted 2023
Easy-to-assemble chemical filterPatent ZL 2023 2 0572453.6 · granted 2023
Chemical filter with enlarged contact areaPatent ZL 2023 2 0572443.2 · granted 2023

Why work with Yiding

One factory, one point of contact.

Factory directManufacturer pricing and direct communication with the people who build your filters.
Built to orderCustom sizes, media, frames and efficiency grades — including replacements for existing installations.
One partnerFilters, equipment, engineering and testing from one supplier, with one point of contact for your project.

Let's talk about your project

Send your sizes, application and quantity.

We will reply with a configuration and quotation.

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