Inactivation of newly emerged corona virus (SARS-CoV-2) by nano-sized electrostatic atomized water particles

The respiratory infectious disease caused by novel corona virus (SARS-CoV-2) emerged in late 2019 is current serious global issue. The vaccines against SARS-CoV-2 are still under development. Therefore, it is essential for us to reduce opportunities being exposed to the viruses in order to prevent from the viral infection. The nano-sized electrostatic atomized water particles (NEAWPs) generated by electrostatic atomizing device have the ability to inactivate several bacterial species. Herein, we focused on the potential of NEAWPs to inactivate SARS-CoV-2. SARS-CoV-2 was significantly inactivated when the viruses were exposed by NEAWPs for more than 1 hour. The amounts of live viruses were 1,000 times lower in the exposure group than the control group at 3-hour post-exposure. These results indicate that NEAWPs are effective on inactivation of SARS-CoV-2.