Novaerus Air dis-infection devices have been independently tested and proven effective to safely clean indoor air. Powered by plasma-based nanotechnology, NanoStrike, they kill all airborne microorganisms on contact providing the first line of protection against viruses and bacteria. Airborne transmission of COVID-19 Health authorities such as the CDC and the WHO have recently updated their guidance on how COVID-19 spreads, acknowledging that the coronavirus can spread via airborne transmission.