Prof. David Y. H. PUI

PhD, University of Minnesota
Visiting Distinguished Professor
Regents Professor, University of Minnesota
Member of U.S. National Academy of Engineering

Prof. Pui received his B.S.M.E., M.S. and Ph.D. all at the University of Minnesota.  He received his Associate Professor (1984) and Professor (1992) in Mechanical Engineering at the University of Minnesota. He was a Visiting Associate at the California Institute of Technology; a Visiting Professor at the Gerhard-Mercator-University Duisburg, Germany; a Distinguished Visiting Professor of the German Research Foundation; a Chair Professor at the Xi’an Jiaotong University and at the Chinese University of Hong Kong, Shenzhen, China; a Distinguished Visiting Professor at The University of Hong Kong and at the City University of Hong Kong.

David Y. H. Pui is a Regents Professor and LM Fingerson/TSI Inc. Chair in Mechanical Engineering at the University of Minnesota.  He is a Member of the U.S. National Academy of Engineering and the Director of the Center for Filtration Research consisting of 20 international filtration manufacturers.  Prof. Pui has a broad range of research experience in aerosol/nanoparticle engineering and filtration technology and has over 360 journal papers and 43 patents.  These have enabled the development of eight commercial instruments for measuring atmospheric pollutions worldwide.  Several ISO standards and NIST primary particle standards are based on his research.  Four large-scale air cleaning towers he developed were deployed in China and India for reducing urban smog and CO2 for environmental sustainability.  He received the Max Planck Research Award (1993), the CAS Einstein Professor Award (2013), and the Fuchs Memorial Award (2010) - the highest disciplinary award conferred jointly by the American, German and Japanese Aerosol Associations.  He served as President of the American Association for Aerosol Research (2000-2001), and President of the International Aerosol Research Assembly (2006-2010) consisting of 16 national associations from around the world.

Selected Journal Publications

  1. Chen, W., Q.S. Ou, C. Chang, C.X. Pei, X. Liu, M. Maricq, D. Kittleson, and D.Y.H. Pui, “Using Aerosols to Create Nano-scaled Membranes that Improve Gasoline Particulate Filter Performance and the Development of Wafer-based Membrane Coated Filter Analysis (WMCFA) Method,” Separation Purification Technology 284:120310 (2022).
  2. Lyu, Q., Q.S. Ou, W.Q. Chen, Y.J. Wang, C. Chang, Y.J. Li, D. Che, and D.Y.H. Pui, “Impact of Catalyst Coating on the Filtration Performance of Catalyzed Wall-Flow Filters,” Separation Purification Technology 285:120417 (2022).
  3. Ye, Y., Q.S. Ou, W.Q. Chen, Q.F. Cao, D.B. Kwak, T.H. Kuehn, and D.Y.H. Pui, “Detection of Airborne Nanoparticles through Enhanced Light Scattering Images,” Sensors, 2022, 22, 2038 (2022).
  4. Griffin, L., M.J. Yu, A. Cloet, S. Arnold, N. Carlson, M. Hillmyer, Q.S. Ou, C.X. Pei, Q.F. Cao, D.Y.H. Pui, R. Franklin, and W. Durfee, “Protective Masks Utilizing Nonendangered Components,” J. Medical Devices – Trans. of the ASME, 16:015001 (2022).
  5. Cao, Q.F., S.C. Kim, Q.S. Ou, H.Y. Chung, W.Q. Chen, W. Durfee, S. Arnold, M. Hillmyer, L.A. Griffin, and D.Y.H. Pui, “Filtration Performance and Fiber Shedding Behavior in Common Respirator and Face Mask Materials,” Aerosol Air Quality Research 23:220437 (2023).
  6. Chen, W., Q.S. Ou, X. Liu, M. Maricq, Z.Y. Pan, D. Kittelson, and D.Y.H. Pui, “A Dual-Geometry Pore-Size-Resolved Model to Predict Deep-Bed Loading in a Wall-Flow Filter,” Separation and Purification Technol 315:123658 (2023).
  7. Chen, S.C., Q.F. Cao, T.H. Kuehn, C. Lo, M. Sahu, Y.S. Mayya, and David Y.H. Pui, “Design of a Medium Scale Ambient PM2.5 Cleaning System,” Aerosol Air Quality Research 23:220437 (2023).
  8. Kwak, D.B., H.D. Fischer, and David Y.H. Pui, “Saliva Droplet Evaporation Experiment and Simple Correlation of Evaporation-falling Curve under Different Temperatures and RH,” Aerosol Air Quality Research 23:220409 (2023).
  9. Pui, D.Y.H., “Reflection on 50 Years of Friendship and Collaboration on Aerosol Science and Technology,” accepted by Aerosol Air Quality Research 23:220400 (2023).
  10. Tian, X., Q. Ou, Y. Lu, J.X. Liu, Y. Liang, D.Y.H. Pui, and H. Yi, “Influence of Oil Content on Particle Loading Characteristics of a Two-stage Filtration System,” Atmosphere 14(3):551 (2023).
  11. Kwak, D.B., J.S. Wang, H. Lee, and D.Y.H. Pui, “Numerical Study of Nanoparticle Penetration Characteristics in Forked Tubes using Tracking Particle Identification,” Powder Technology 415:118172 (2023).
  12. Pei, C., W. Chen, Q. Qu, and D.Y.H. Pui, “Smart Filter Performance Monitoring System,” Aerosol Air Quality Research 23:220416 (2023).
  13. Pan, Z.Y., Q.S. Qu, F.J. Romay, W.Q. Chen, T.L. You, Y. Liang, J. Wang, and D.Y.H. Pui, “Study of Structural Factors of Structure-Resolved Filter Media on the Particle Loading Performance with Microscale Simulation,” Separation and Purification Technology 304:122317 (2023).
  14. Kwak, D.B., S.C. Kim, G.W. Mulholland, M.C. Owen, C. Kim, H. Lee, and D.Y.H. Pui, “Development of a Detection System for Gas-Phase Aromatics and Other Molecules Ionizable by Soft X-rays Demonstrated using Methyl Salicylate,” Aerosol Science and Technology 57:629-632 (2023).
  15. Song, T., D.B. Kwak, S.C. Kim, Q.S. Ou, C.X. Pei, H.Y. Chung, W.W.S. Poon, L. Ni, and D.Y.H. Pui, “Comparison of Microfiltration Performances of ePTFE and PCTE membranes in IPA and Deionized Water,” J. Water Process Engineering 54:103942 (2023).
  16. Kwak, D.B., S. Lee, Z.Y. Pan, Y. Liang, H.D. Lee, and D.Y.H. Pui, “Semi-empirical Equation for Determining the Pressure Drop of Nanofibers,” Separation and Purification Technology 324:124585 (2023).
  17. Pui, D.Y.H., S.C. Chen and Z. Zuo, "PM2.5 in China: Measurement, Sources, Visibility and Health Effects, and Mitigation," Particuology, Vol 13, 1-26 (2014). (Cited by 811; one of top-3 cited papers on PM2.5 in China).
  18. Chen, D.R., D.Y.H. Pui, and S.L. Kaufman, "Electrospraying of Conducting Liquids for Monodisperse Aerosol Generation in the 4 nm1.8 µm Diameter Range," J. Aerosol Science Vol 26, 963-977 (1995).
  19.  Chen, D.R., and D.Y.H. Pui, "Experimental Investigation of Scaling Law for Electrospraying: Dielectric Constant Effect,”Aerosol Science and Technology Vol 27, 367-380 (1997).
  20. Pui, D.Y.H. Pui, F. Romay-Novas, and B.Y.H. Liu, "Experimental Study of Particle Deposition in Bends of Circular Cross Section," Aerosol Science and Technology, Vol 7, 301-315 (1987).
Prof David PUI
Contact Information
Office: YEUNG-G7606
Phone: +(852)-3442-2822
Fax: +(852)-3442-0688
Email: davidpui@cityu.edu.hk

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