21.01.2021, Singapore, , Singapore - A fully automated cleaning machine is in operation at Changi International Airport's new Jewel Terminal, cleaning the floor amid the coronavirus pandemic while people in mouth guards walk by.. 0SL210121D015CAROEX.JPG [MODEL RELEASE: NO, PROPERTY RELEASE: NO (c) caro images / Schuelke, http://www.caro-images.com, [email protected] - In case of using the picture for any purpose, please contact the agency - the picture is subject to royalty!]