Bipolar ionization rapidly inactivates real-world, airborne concentrations of infective respiratory viruses (IMAGE) PLOS Caption The drawing illustrates the delivery of positive and negative ions into a room. Ions generated by the in-duct NPBI device (A) are delivered into the room through diffusers (B) on the supply side of the HVAC system. Credit GPS Air, CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/) Usage Restrictions Credit must be given to the creator. License CC BY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.