Only the SmartSCREEN® gives you the confidence to convert flushing urinals to water conserving urinals. SmartSCREEN® is infused with Neutrabond™ technology to ensure the restroom smells clean throughout the day. Neutrabond™ 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. Bio-Active enzymes cleans and fights odor causing bacteria with use. 2400 uses. Non-para block, meets VOC requirements.