High Efficiency Vortex Air Filter

HKUST
Overview

This invention provides a microfluidic PM2.5 removal device with a staggered herringbone micromixer that can remove PM2.5 particulates efficiently while maintaining comfortable breathing to improve user experience.

  • High Efficiency Vortex Air Filter
Commercialisation opportunities
Technology licensing agreement
Problem addressed

Avoid discomfort of wearing ordinary mask at high filtration efficiency

Innovation
  • A microfluidic PM2.5 removal device with a staggered herringbone micromixer
Key impact
  • High PM2.5 removal efficiency with micromixer.
  • Low pressure drops due to wide microfluidic channel.
  • Large surface area, with herringbone-shaped grooves for PM capture.
  • Can be used for multiple times
Application
  • Air Filtration/Purification Device
  • Face Mask
  • Medical device such as CPAP, respirator, and ventilators

Patent

  • USPTO US Granted Patent: Application # 16/401402
  • CNIPA Chinese Patent Application 201910364376.3
  • HK Patent Application 42020003798.4
The Hong Kong University of Science and Technology (HKUST)

The Hong Kong University of Science and Technology (HKUST) (https://hkust.edu.hk/) is a world-class research intensive university that focuses on science, technology and business as well as humanities and social science. HKUST offers an international campus, and a holistic and interdisciplinary pedagogy to nurture well-rounded graduates with global vision, a strong entrepreneurial spirit and innovative thinking. Over 80% of our research work were rated “Internationally excellent” or “world leading” in the Research Assessment Exercise 2020 of Hong Kong’s University Grants Committee. We were ranked 3rd in Times Higher Education’s Young University Rankings 2022, and our graduates were ranked 23rd worldwide and among the best from universities from Asia in Global University Employability Survey 2021.

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