Advanced Self-cleaning Oil Fume Purification System for Commercial Kitchens

Principle Investigator:
Prof. LEE Shun Cheng, Professor, Department of Civil and Environmental Engineering; Technical Advisor, AeroGreen Technology Company Limited (a PolyU startup)
Dr LI Xinwei, Postdoctoral Fellow, Department of Civil and Environmental Engineering; Founder, AeroGreen Technology Company Limited (a PolyU startup)
Dr HAN Shuwen, Alumni, Department of Civil and Environmental Engineering; Chief Technology Officer, AeroGreen Technology Company Limited (a PolyU startup)

The Advanced Self-Cleaning Oil Fume Purification System for Commercial Kitchens offers an innovative solution for efficiently removing oil fumes. It features a self-cleaning mechanism, ensuring optimal performance with minimal maintenance. The system includes a cooking device and a purification unit with a rotatable carrier body that allows gas and liquid to pass through. An oil fume purification ring cleans fumes during rotation, with its inner cavity directed towards the exhaust for enhanced efficiency. A liquid supply provides cleaning liquid to the ring, while a suction component extracts and releases purified gas.

Our system effectively cleans oil fumes using a self-developed surface-active agent, achieving a purification efficiency of 60–80% for volatile organic compounds and 90% for particulate matter in commercial kitchens. This makes it a valuable addition to modern restaurants.