The Wave 3D patented urinal screen releases more than twice t he active ingredients as look-alike screens over 30-days to keep the urinal and restroom smelling fresh. The Wave 3D doesn't just mask it, it releases optimized bacteria that consume the odors. The revolutionary design features a post and lattice design extending through the screen and diffuses the urine stream. The 2-sided anti-splash design removes 99% of the urine splash either side up.