Commercial Kitchen Electrostatic Precipitator & Exhaust Purification Equipment
From modular in-duct electrostatic precipitators to integrated ESP exhaust hoods and odor control modules — Polygee manufactures a complete product line for commercial kitchen exhaust purification. BSE-listed (920802) with 179 patents and UL/CE certifications in 50+ countries.
Kitchen Exhaust Purification Equipment — Engineered & Manufactured In-House
Whether you need a retrofit in-duct electrostatic precipitator, a brand-new all-in-one ESP hood, or odor control accessories — every product is designed, tested, and manufactured in our own 125,000㎡ smart factory.
Modular In-Duct Electrostatic Precipitator
Installs directly inside existing kitchen exhaust ductwork — no hood replacement, no structural modifications. Our patented dual-zone plate-type electrostatic field delivers 90%~99% grease and smoke removal efficiency. Modular design scales from a single restaurant to a 60,000+ m³/h food court complex. The most popular choice for commercial kitchen retrofits worldwide.
Integrated Kitchen ESP Hood
A complete commercial kitchen exhaust hood with built-in electrostatic precipitator, LED task lighting, oil drainage system, and optional IoT smart monitoring. Clean air exits the hood directly — no external purifier or ductwork modifications needed. 304 stainless steel construction with custom dimensions available. The cleanest, most efficient design for new kitchen builds.
UV-C Photolysis Odor Control Module
High-intensity UV-C photolysis module for decomposing gaseous cooking odors and VOCs (volatile organic compounds). Installs downstream of the electrostatic precipitator to provide complete kitchen exhaust treatment — eliminating both visible smoke and invisible odor molecules. Essential for restaurants in residential areas or dense urban environments.
Activated Carbon Adsorption Filter
High-capacity activated carbon adsorption module for cooking odor elimination. Installed downstream of the electrostatic precipitator for comprehensive exhaust treatment. Multi-layer carbon cartridges maximize adsorption surface area. Cartridges are replaceable and recyclable — reducing long-term operating costs and environmental impact.
What Is a Commercial Kitchen Electrostatic Precipitator?
A commercial kitchen electrostatic precipitator (ESP) is an advanced air purification device that uses high-voltage electrostatic fields to capture grease particles and smoke from cooking exhaust — achieving 90%~99% removal efficiency without disposable filters. According to the U.S. EPA, cooking emissions are a major indoor air quality concern in commercial foodservice environments.
Unlike household range hoods that simply redirect smoke outdoors, a commercial kitchen ESP actually removes pollutants at the molecular level. It works by first charging grease and smoke particles with a high-voltage ionization field (12–13kV), then collecting them on oppositely charged aluminum plates. The result: clean, odor-reduced air that meets the strictest emission standards worldwide.
ESP technology is the gold standard for commercial kitchens because it handles the extreme volume and density of cooking fumes that restaurants, hotels, food courts, and central kitchens generate daily — far beyond what any passive mesh or baffle filter can manage. The ASHRAE standards recommend electrostatic precipitation as an effective method for commercial kitchen ventilation systems.
Key Components of Polygee ESP Systems
Three patented core technologies — each independently designed, manufactured, and quality-tested in our 125,000㎡ smart factory.
Dual-Zone Plate-Type Electrostatic Field
Our patented dual-zone plate-type ESP field separates ionization and collection into two dedicated stages. High-voltage ionization wires charge particles in the first zone; flat aluminum collector plates capture them in the second — achieving 90%~99% removal efficiency.
Intelligent Power Supply
Self-developed SMPS high-voltage power supply with real-time adaptive voltage control, automatic fault detection, arc suppression, and self-recovery. Ensures stable performance under varying exhaust loads — reducing energy waste by up to 30%.
Modular Design
Standardized modular construction allows flexible configuration for any kitchen size — from single-unit restaurants to large-scale hotel central kitchens. Easy installation, quick maintenance, and seamless capacity expansion with plug-and-play collector cells.
Electrostatic Precipitator vs. Traditional Grease Filters
See why commercial kitchens worldwide are replacing disposable mesh filters with electrostatic precipitators for exhaust purification.
| Feature | Traditional Mesh/Baffle Filter | Polygee Electrostatic Precipitator |
|---|---|---|
| Grease Capture Efficiency | 40–60% | 90%~99% ✓ |
| Visible Smoke Removal | ✗ Poor | ✓ Eliminated |
| Fire Risk Reduction | Limited — grease enters duct | ✓ 90%~99% removed at source |
| Filter Replacement | ✗ Frequent disposable | ✓ Washable & reusable cells |
| Duct Cleaning Frequency | Monthly | Quarterly or less ✓ |
| Pressure Drop | 150–300 Pa (increases as filter clogs) | <100 Pa constant ✓ |
| Energy Consumption | Higher — exhaust fan works harder | 15–20% energy saving ✓ |
| Installation Disruption | Full hood replacement required | 1–2 day retrofit ✓ |
How an Electrostatic Precipitator Removes Kitchen Grease & Smoke
A two-stage electrostatic process captures 90%~99% of grease particles and visible smoke — without disposable filters.
Ionization Stage
Dirty kitchen exhaust passes through a high-voltage ionization field (12–13kV). Every grease and smoke particle receives a positive electrical charge — including sub-micron particles invisible to the naked eye.
Collection Stage
Charged particles enter the collector zone — flat aluminum plates arranged with alternating polarity in a dual-zone plate-type configuration. Particles are attracted to and deposited on the plates, achieving 90%~99% capture efficiency.
Clean Air Output
Purified air exits the ESP with ≤5% residual particles. Collector cells are fully washable and reusable — simply soak in alkaline degreaser or run through a commercial dishwasher. Zero disposable filters.
Types of Commercial Kitchen ESP Systems
Choose the right ESP configuration based on your kitchen layout, installation constraints, and exhaust treatment requirements.
Modular ESP unit that slides into existing kitchen exhaust ductwork. No hood replacement or structural changes required. The most popular choice for restaurants already in operation.
- Installs in 1–2 days without business disruption
- Scales from 2,000 to 60,000+ m³/h
- No ceiling demolition or hood replacement
- Works with any existing hood brand
- UL, CE, CQC certified
Complete all-in-one exhaust hood with built-in ESP, LED lighting, and oil drainage. Clean air exits the hood directly — zero external equipment needed.
- 98%+ purification efficiency
- 304 stainless steel construction
- Built-in LED task lighting
- Custom dimensions available
- Cleanest design for new kitchens
Combination system: ESP for grease/smoke removal + UV-C photolysis and/or activated carbon for odor elimination. The most comprehensive kitchen exhaust treatment available.
- Addresses both particulate & gaseous pollutants
- Eliminates cooking odors for neighbors
- Meets strictest urban emission standards
- Modular: add UV or carbon independently
- Essential for residential-area restaurants
What Makes Polygee Electrostatic Precipitators Different
Backed by 179 patents, a BSE-listed parent company (stock code: 920802), and 125,000㎡ of in-house manufacturing — our technology is proven at scale.
Patented Plate-Type Electrostatic Field
Dual-zone plate-type design separates ionization and collection for maximum grease capture efficiency. 28 invention patents protect this core technology.
Self-Developed Smart Power Supply
High-frequency, high-voltage power supply with auto fault detection, arc protection, and self-recovery. Engineered and manufactured in-house.
Certified in 50+ Countries
UL (USA), CE (EU), RoHS, CCEP, CQC, ISO 9001, ISO 14001, ISO 45001 — documentation ready for building authority submissions worldwide.
Common Challenges in Commercial Kitchen Exhaust Management
Traditional kitchen exhaust methods create costly, dangerous, and compliance-threatening problems. Here's how electrostatic precipitators solve every one of them.
- ✗Emission violations and regulatory fines — mesh filters only capture 40–60% of grease, leaving visible smoke plumes that trigger complaints and inspections
- ✗Kitchen fire hazard from grease-loaded ductwork — grease that passes through filters accumulates inside ducts, a leading cause of commercial kitchen fires
- ✗Ongoing expense from disposable filter replacements — mesh and baffle filters degrade quickly and must be purchased repeatedly, adding up to thousands annually
- ✗Cooking odor complaints from neighbors and tenants — passive filters do nothing to address gaseous odors, leading to neighbor lawsuits in residential areas
- ✗Business shutdown required for hood replacement — installing a new exhaust system means days of downtime, construction disruption, and lost revenue
- ✗High energy bills from exhaust fan overwork — as mesh filters clog, pressure drop increases, forcing exhaust fans to work harder and consume 15–20% more electricity
- ✓90%~99% purification efficiency meets the strictest emission regulations worldwide — zero visible smoke, zero violation risk, full compliance documentation provided
- ✓Grease captured at source before entering ductwork — dramatically reduces fire risk and cuts duct cleaning frequency from monthly to quarterly or less
- ✓Washable, reusable collector cells last 10+ years — zero recurring filter cost. Just soak in degreaser every 2–4 weeks and reinstall. Dishwasher-compatible
- ✓Add UV-C or activated carbon downstream for complete odor elimination — gaseous VOCs decomposed or adsorbed, solving neighbor complaints permanently
- ✓In-duct ESP retrofits in 1–2 days with zero business disruption — slides into existing ductwork, no hood replacement, no construction, restaurant stays open
- ✓Constant low pressure drop (<100 Pa) saves 15–20% energy — unlike mesh filters that progressively clog, ESP maintains consistent airflow resistance
Commercial Kitchen Applications for Electrostatic Precipitators
From single-location restaurants to multi-site chain operations — Polygee ESP systems are engineered for every commercial kitchen environment.
Restaurant Kitchen ESP Solution
Chinese wok, Western grill, Japanese teppanyaki — customized ESP for every cooking style. Retrofit in 1–2 days.
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Hotel Kitchen ESP System
Centralized ESP for banquet halls, all-day dining, specialty restaurants & room service kitchens.
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Chain Restaurant ESP Filtration
Standardized ESP configurations for multi-location rollouts. Consistent specs across 100+ locations.
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Food Court ESP Exhaust Purification
Centralized ESP handling 60,000+ m³/h from multiple vendors. Modular scalable design.
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BBQ Smoke Control ESP
Heavy-smoke environments. ESP + UV-C combo eliminates smoke and intense cooking odors.
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Café & Bakery ESP Filtration
Compact, quiet ESP for baking fumes and light grease. Ideal for urban storefronts.
View Solution →Every ESP Built in Our Own 125,000㎡ Smart Factory
From raw material cutting to final quality inspection — every electrostatic precipitator is manufactured in-house at our Zhangjiagang facility, ensuring consistent quality at any production volume.
ESP Performance — Detailed Specification Comparison
Compare key performance parameters across Polygee ESP product lines and traditional filtration technologies.
| Parameter | In-Duct ESP | ESP Hood | UV-C Module | Carbon Filter | Mesh Filter |
|---|---|---|---|---|---|
| Grease Removal | 90%~99% | 98%+ | N/A | N/A | 40–60% |
| Smoke Removal | 90%~99% | 98%+ | Partial | N/A | Poor |
| Odor Removal | Partial | Partial | 85–95% | 90%+ | None |
| Airflow Range | 2,000–60,000+ m³/h | Custom | Matched to ESP | Matched to ESP | Varies |
| Pressure Drop | <100 Pa | <100 Pa | <50 Pa | 80–150 Pa | 150–300 Pa |
| Noise Level | ≤45 dB | ≤45 dB | <40 dB | Passive | N/A |
| Maintenance | Wash every 2–4 weeks | Wash every 2–4 weeks | Lamp replace yearly | Cartridge replace | Replace filters |
| Operating Cost | Very Low | Very Low | Low | Medium | High |
| Service Life | 10+ years | 10+ years | Lamp: 8,000h | Cartridge: 6–12 mo | 1–3 months |
| Installation | 1–2 days retrofit | New build / reno | Add-on module | Add-on module | Built into hood |
| Certifications | UL / CE / CQC | UL / CE / CQC | CE | CE | Varies |
ESP Airflow Sizing Calculator
Enter your kitchen details to get an instant ESP sizing recommendation. For a detailed quotation, submit the results to our engineering team.
📐 Enter Kitchen Parameters
Fill in the form and click Calculate to see your recommended ESP configuration, estimated airflow, and energy consumption.
📋 Your ESP Recommendation
How to Choose the Right Electrostatic Precipitator for Your Kitchen
Answer these three questions to identify the optimal ESP configuration for your specific project requirements.
New Kitchen Build or Retrofit?
- 🏗️ New build / full renovation → Integrated ESP Hood — cleanest design, maximum efficiency, single-vendor responsibility
- 🔧 Existing kitchen, no downtime → In-Duct ESP — slides into current ductwork in 1–2 days, zero disruption to business
- 🔄 Phased upgrade → Start with In-Duct ESP, add UV-C or carbon later as budget allows
Do You Have Odor Complaints?
- 🏢 Located in residential area → ESP + UV-C Module — decompose gaseous cooking odors at molecular level
- 🔥 Heavy-smoke cooking (BBQ, wok) → ESP + Activated Carbon — adsorb intense cooking smells
- 🌳 No odor issues → ESP alone provides 90%~99% grease and smoke removal — sufficient for most locations
What Airflow Volume Do You Need?
- 🍳 Small kitchen (≤4,000 m³/h) → Single ESP unit — compact, cost-effective, easy maintenance
- 🍔 Medium kitchen (4,000–10,000 m³/h) → 2–3 modular ESP units in parallel — balanced capacity with redundancy
- 🏭 Large facility (10,000+ m³/h) → Multi-unit modular system — scales to 60,000+ m³/h with centralized IoT monitoring
Real-World Impact — ESP Installation Case Studies
See how commercial kitchens worldwide have transformed their exhaust management with Polygee electrostatic precipitators.
"After deploying Polygee ESP across all locations, our duct cleaning costs dropped by 75% and we haven't received a single smoke complaint in 18 months."
— VP of Operations, National QSR Chain"The centralized ESP system handles exhaust from 45 diverse food vendors — from sushi to wok stations — and the shopping concourse has zero visible smoke or cooking odor."
— Facility Director, Mall Management Group"Polygee was the only manufacturer that could provide UL-listed ESP hoods with custom dimensions matching our architectural plans. 14 months in service — flawless performance."
— Chief Engineer, International Hotel GroupGet Your Custom ESP Configuration
Send us your kitchen details — duct dimensions, airflow requirements, and cooking type — and receive a custom electrostatic precipitator recommendation with a detailed quotation within 24 hours.