Cold plasma can kill 99.9% of airborne viruses, U-M study shows

To gauge nonthermal plasmas’ effectiveness, researchers pumped a model virus—harmless to humans—into flowing air as it entered a reactor. In this way, Clack and his team were able to determine that more than 99% of the air sterilizing effect was due to inactivating the virus that was present, with the remainder of the effect due to filtering the virus from the air stream. “The results tell us that nonthermal plasma treatment is very effective at inactivating airborne viruses,” said Krista Wigginton, assistant professor of civil and environmental engineering.

Source: news.umich.edu