Daikin confirms effectiveness of Streamer Technology to inactivate Coronaviruses

Daikin Industries Limited, World’s leaders in Air-conditioning confirms effectiveness of patented Streamer Technology to inactivate Coronavirus (SARS-CoV-2) and Mouse Hepatitis Virus A59 MHV-A59. Inactivation of the Novel Coronavirus (SARS-CoV-2) Exceeds 99.9 per cent in three Hours

Daikin Industries Limited, World’s leaders in Air-conditioning confirms effectiveness of patented Streamer Technology to inactivate Coronavirus (SARS-CoV-2) and MHV-A59. In a joint study done with Professor Shigeru Kyuwa, Department of Biomedical Science, the University of Tokyo, and a group research professors from Department of Microbiology, Okayama University of Science.

On day of the announcement, K J Jawa, CEO & MD of Daikin India said, “We are continuously researching various technologies and remain at the forefront of innovations that impacts the humankind to lead a better life. Today, we demonstrated the effective inactivation of SARS-CoV-2 by using Streamer Technology. We expect it would be useful to reduce the risk of infection in real spaces like offices, homes, medical facilities and vehicles too, in future”.

In seeking to verify the effectiveness of Streamer technology since 2004, Daikin has previously demonstrated over 60 types of harmful substances, such as bacteria, allergens and viruses including influenza virus (type A, H5N1) and mouse noroviruses, to be suppressed or inactivated by Streamer technology. From the latest study, Daikin has confirmed that Streamer Technology inactivates more than 99.9 per cent of coronavirus (SARS-CoV-2) and Mouse Hepatitis Virus A59 (MHV-A59) after irradiating the viruses for three hours with Streamer discharge.

Streamer Technology:

Streamer technology is a technology that uses Streamer discharge, which Daikin developed in 2004, to perform oxidative decomposition of harmful substances. It is a type of plasma discharge featuring an innovative air purification technology that stably generates “high-speed electrons,” a feat which had proven difficult up to that time. Its oxidative decomposition capability is much greater than that of conventional plasma discharge (glow discharge). Moreover, when combined with air components, these high-speed electrons have a capability for powerful oxidative decomposition, and this capability enables Streamer discharge to continuously remove odours, bacteria, and indoor air pollutants such as formaldehyde.

To date, Daikin has been collaborating with numerous universities and public research institutes to demonstrate the effectiveness of this technology for highly virulent influenza viruses (A-type H5N1), weakly virulent influenza viruses (A-type H1N1), mouse norovirus, and toxins and bacteria as that cause food poisoning.


This demonstration shows the results of experiments using a device that generated Streamer discharge under test conditions and does not indicate the effectiveness of an actual Streamer product in use under actual conditions (living space).