Only the SmartSCREEN[R] gives you the confidence to convert flushing urinals to water conserving urinals. SmartSCREEN[R] is infused with Neutrabond[TM] technology to ensure the restroom smells clean throughout the day. Neutrabond[TM] Technology is a specially developed combination of malodor counteractants and fragrances that gradually release to chemically bond to microscopic malodor compounds, such as sulfur and ammonia, rendering them odorless and non-toxic.