University and school canteens present a unique air quality challenge: they must serve thousands of meals in compressed time windows (typically 11:30-13:30), generating intense cooking emissions in short bursts. Unlike commercial restaurants that spread demand across hours, educational canteens concentrate it — and the air purification system must handle peak loads that are 3-5× the average.
| Parameter | Specification |
|---|---|
| Model Range | Heavy-duty Series / Heavy-duty Series / Heavy-duty Series |
| Airflow | 4,000-8,000 m³/h |
| Peak Load Handling | 3-5× average with variable speed |
| Kitchen Size | 200-800 m² |
| Ductless Option | Available for internal campus buildings |
| Control | PLC with time-based scheduling |
| Noise | Optimized for occupied adjacent spaces |
Application Scenarios
- University campus dining hall (Beijing): A university canteen serving 12,000 students daily with 3 meal periods installed 6 Heavy-duty Series units across 4 cooking zones (Chinese stir-fry, noodle station, Western grill, steam/boil). The system uses time-based scheduling — ESP modules ramp to full power 15 minutes before each meal service and reduce to 30% during prep and cleaning periods. Energy monitoring shows 35% reduction vs constant-speed operation.
- International school kitchen (Shanghai): A K-12 international school with 2,000 students operates a central kitchen preparing breakfast, lunch, and after-school snacks. The kitchen is located in the basement of the main academic building, directly below classrooms. Four Heavy-duty Series ductless purifiers with carbon+UV odor treatment ensure zero cooking odor in classroom areas. Air quality sensors in the hallway outside the kitchen report PM2.5 levels indistinguishable from classroom levels.
- Boarding school 24-hour kitchen (UK): A boarding school in Surrey with 800 residential students requires kitchen operation from 6:00 AM to 9:00 PM. The kitchen’s 18-hour operating day meant the maintenance window was extremely limited. Auto-cleaning ESP was specified, with the daily wash cycle scheduled for 4:00-4:20 AM. The bursar reports that kitchen exhaust maintenance costs decreased 60% vs the previous baffle-filter system.
- University food court renovation (California): A campus food court in a student union building was renovated with 12 food outlets sharing a common dining area. Each outlet received an individual Heavy-duty Series ductless unit, allowing the university to lease outlets to different food service operators with independent extraction — eliminating disputes over shared duct performance. Students sitting in the dining area directly adjacent to cooking stations reported “no detectable food smell on clothing” in post-renovation surveys.
