The impact of climate change is an increase in the earth's surface temperature. Currently humans still use AC to lower the room temperature, but the use of AC can increase global warming because it contains CFC. DIMASTER is an innovation by utilizing non-woven fibers in masks and aluminum foil as wall and roof coatings as a solution that can heat reducer in the roomBased on the results, DIMASTER can reduce heat with an average temperature of 36 0C within a period of 0-30 minutes.