The fourth Annual Research Symposium of the Faculty of Technology, University of Colombo was held on 26th November 2020. It was a virtual symposium hosted at the Senate Hall of the University of Colombo via Zoom with the participation of authors of the abstracts, the staff, and undergraduates of the Faculty. The theme of the symposium was “Technology for a clean and healthy nation”. The Dean of the Faculty, Senior Professor Sumedha Jayanetti delivered the Welcome Address highlighting the importance of engaging in research as members of the Faculty. Senior Professor Chandrika N. Wijeyaratne, the Vice Chancellor, University of Colombo graced the occasion as the Chief Guest. The Keynote Address was given by Dr. Anura Senaratne, a former Deputy Director, Research and Technical Services, Industrial Technology Institute, Sri Lanka. The Symposium Chairperson, Dr. Hansika Atapattu proposed the Vote of Thanks.