... Bamboo charcoal factor (It can capture and purification formaldehyde , benzene ,TVOC , and others variety of harmful substances in ... , ceiling , Apartment , concrete, cement mortar and masonry. Color:White and other colors Theoretical Coverage: 8 to 10 ( ... consumption may vary with substrate condition, construction methods, environment and other factors. Application method: Brush, Roller, Spray Packing ...