KESAN or 'Kresek Kesadaran' (dubbed "Goodie Bags for Doilng Good!") is a unique single-use mask disposable service using hydrothermal waste treatment that enables them to be dissolved and reformed as new useful long-lasting mater als. The KESAN bags that are used to collect the used masks, art made from dried cassava that made them 100% biodegradable and compostable whith mean they are safe for processing and the environment.