Green Cleaning: A Study on Benefits for Malaysian School Building Nur Aqlima Ramli, Emma Marinie Zawawi, Nor Rima Muhamad Ariff, Siti Solehah Kadir and Nurul Nadiah Zainol MATEC Web Conf., 266 (2019) 01008 Published online: 20 February 2019 DOI: 10.1051/matecconf/201926601008