In a room where the walls contained tar material most of the wall surfaces were covered with cTrap, which caused the odor to disappear and the air concentration of PAH to decrease from 1726 to 139 ng/m3.
In a room where the walls contained tar material most of the wall surfaces were covered with cTrap, which caused the odor to disappear and the air concentration of PAH to decrease from 1726 to 139 ng/m3.