Newly retired from the Hong Kong Polytechnic University. He got his PhD degree from the Durham University, UK. Being a Fellow of the Royal Society of Biology (FRSB), he focuses on applying of his knowledge and knowhow on ozone applications especially in water treatment and environmental conservation. As an educator, in addition to publishing his research output in international journal, he had written a number of books, including topics on water consumption and gifted education. His book Gifted Education from A – Z, is the first book in Hong Kong on STEAM education (Science, Technology, Engineering, Arts and Mathematics).