Rainwater was collected in a pool conditioned by EcoBio-Block products to use in an innovative new cooling system at the Japanese pavilion at Expo 2010 Shanghai, China. The water was collected with the use of solar energy collection batteries, hidden in the double-layer membrane of the outer shell. It was then sprayed on the exterior surface to keep the structure cool. The water was then re-circulated through the EcoBio-Block pool to keep the water fresh, clear and clean. Picture shows the location of the EcoBio-Blocks with pink circles.