On August 31, 2022 at 9.30 a.m., Assistant Professor Chantika Chunpia, Associate Dean for Administration, Faculty of Nursing Mahidol University, gave opening remarks for The Activity “Big Cleaning Day 2022”. Associate Professor Weeraya Jungsomjatepaisal, Associate Dean for Human Resources, and supporting staff participated in cleaning activities in the multipurpose yard, 1st floor, Bangkok Noi, and cleaning common areas in their own departments or divisions.