The Challenge: Why Commercial Kitchens Need Better Exhaust Solutions
In any bustling city, commercial kitchen exhaust is a growing problem. Dense cooking smoke drifts toward residential buildings. Grease accumulates inside ductwork, creating serious fire hazards. Traditional metal mesh filters capture only a fraction of grease particles — the rest becomes a ticking time bomb.
As environmental regulations tighten worldwide, a high-efficiency exhaust purification system is no longer optional — it is the lifeline of every commercial kitchen.
Electrostatic precipitation (ESP) technology is the answer. By using high-voltage electrostatic fields to capture grease at the molecular level, ESP systems deliver high-efficiency capture of sub-micron grease aerosols without disposable filters — far beyond what any passive mesh or baffle filter can manage.
Our Story: 20 Years Dedicated to One Mission
Founded in 2004 in Zhangjiagang, Jiangsu Province, Polygee has spent two decades focused on a single mission: manufacturing reliable commercial kitchen electrostatic precipitators.
- 2004 — Company founded in Zhangjiagang, dedicated to ESP R&D and manufacturing
- Corporate Restructuring — Transformed into a joint-stock company with modern governance
- NEEQ Listing — Secured capital for technology expansion and global market development
- 2010s — Built the ISO 9001, ISO 14001 and ISO 45001 management systems; obtained CE and RoHS certification for the covered model ranges
- 2020 — Recognized as a "Demonstration Smart Workshop"; launched IoT-enabled DESP series
- 2023 — IPO on Beijing Stock Exchange (BSE: 920802) — an A-share listed fume purification company; UL 867 certification obtained for the LK and SE 6K / 12K / 18K models in North America
Today, Polygee holds 225 patents, operates a 110,000 sqm smart factory with 300+ employees, and exports to 50 countries across five continents.
Our Core Technology: Plate-Type Electrostatic Field
At the heart of every Polygee ESP is our proprietary dual-zone plate-type electrostatic field — the technology that sets us apart. Unlike honeycomb designs, our plate-type architecture separates ionization and collection into two independent, optimized stages.
Stage 1 — Ionization: High-voltage wires (12–13kV) charge incoming grease and smoke particles, including sub-micron oil mist invisible to the naked eye.
Stage 2 — Collection: Flat stainless steel plates with alternating polarity attract and deposit charged particles. Grease drains to collection trays automatically.
Why Plate-Type Outperforms Honeycomb
- High-efficiency capture — Independent ionization and collection stages reduce interference between the two functions
- Easy cleaning — Flat plates with no dead zones; soak in degreaser or run through a dishwasher
- Washable cells — Collector cells are designed for repeated cleaning and reuse, avoiding recurring media-replacement costs
- Lower maintenance — Quarterly cleaning vs. monthly for honeycomb designs
Intelligent Power Supply
- Adaptive voltage — Auto-adjusts output based on real-time exhaust load
- Arc suppression — Automatic fault detection, instant cut-off and self-recovery
- Lower energy draw — Switched-mode design reduces energy waste compared with traditional line-frequency power supplies
These core technologies are protected by 225 authorized patents (including 39 invention patents).
Our Product Lines
We manufacture a complete product range for commercial kitchen exhaust purification — from grease removal to odor control.
| Series | Purification Grade | Stages | Best For | Key Feature |
|---|---|---|---|---|
| LK-K | Top grade | 5-stage | Luxury hotels, strict emission zones | Dual plates + UV module |
| LK-D | Mid grade | 4-stage | Chain restaurants, hotel kitchens | Best value plate-type field |
| LK-A | Standard grade | 4-stage | Standard restaurants, bulk orders | Most cost-effective |
Complementary Products
- Integrated ESP Hood — stainless steel body, built-in ESP + LED lighting + auto oil drainage
- UV-C Photolysis Module — Decomposes VOCs and cooking odors downstream of ESP
- Activated Carbon Filter — Replaceable, recyclable cartridges for final-stage VOC adsorption
Industry Solutions
Every kitchen is different. We provide tailored ESP configurations for six core commercial scenarios.
- Restaurant Kitchen — Chinese wok, Western grill, Japanese teppanyaki — tailored for each cooking style
- Hotel & Resort — Centralized systems for banquet halls, all-day dining, room service
- Food Court & Mall — 60,000+ m³/h modular parallel design for multi-tenant environments
- Chain Restaurant — Standardized deployment across multi-site chain operations
- BBQ & Grill House — ESP + UV-C combination for heavy smoke and intense odors
- Café & Bakery — Compact, quiet ESP for urban storefronts
Our 110,000 sqm Smart Factory
Our self-owned manufacturing base in Zhangjiagang, Jiangsu is just 2 hours from Shanghai Port. With automated CNC production lines and in-house component manufacturing, we deliver consistent quality at any production volume.
- MES System — Full-chain traceability from raw materials to finished goods
- CNC Laser Cutting — ±0.1mm dimensional precision
- Robotic Welding — Automated, consistent weld quality
- Full-unit QC Inspection — Every unit tested for high-voltage, airflow, and efficiency before shipment
Global Certifications
| Certification | Market Coverage |
|---|---|
| UL 867 | North America (USA / Canada) — LK and SE 6K / 12K / 18K models |
| CE | European Union — LK30–480, LK-E and UV models |
| RoHS | Global — ESP models; UV, activated carbon and SPP units not covered |
| ISO 9001 / 14001 / 45001 | Quality / Environment / Safety management systems (company-wide) |
Trusted by Landmark Projects Worldwide
From landmark developments to international hotel groups, Polygee ESP systems are installed across five continents.
Export Markets
- Europe — UK, Germany, France, Italy, Spain, Netherlands, Poland, Sweden
- Middle East — UAE, Saudi Arabia, Qatar, Kuwait, Oman, Bahrain
- Asia-Pacific — Singapore, Malaysia, Thailand, Vietnam, Philippines, Australia
- Americas — United States, Canada, Mexico, Brazil
Partner With Us: OEM/ODM & Distribution
Whether you want to distribute under the Polygee brand or build your own ESP brand through private-label manufacturing, we have a cooperation pathway ready for you.
What We Offer
- Custom branding — Your logo, nameplate, and packaging
- Spec adjustments — Adapted for your market’s voltage, regulations, and installation practices
- New product co-development — In-house R&D team supporting concept-to-delivery
- Fast lead time — 7–15 days for standard models; stock inventory available
- Simple process — Inquiry → Quote (24h on business days) → Sample → Production → FOB/CIF Shanghai
Why Choose Polygee
- BSE-listed (920802) — An A-share listed ESP manufacturer; public listing brings financial transparency and long-term operational stability
- 225 patents — A patent portfolio built over two decades of ESP-focused R&D
- 110,000 sqm smart factory — In-house manufacturing on automated CNC production lines
- Plate-type technology — High-efficiency capture of sub-micron grease aerosols with washable, reusable collector cells designed for repeated cleaning cycles
- ISO 9001 / 14001 / 45001 certified manufacturer — With UL, CE and RoHS certification on the covered model ranges; exporting to 50 countries
- 20 years focused — One product category, consistent focus, proven at scale
Ready to Source Quality ESP Systems?
Tell us your kitchen requirements. Our engineering team will design a solution matched to your setup — free consultation, fast response.
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