Streamer Technology To Inactivate Coronaviruses

From the latest study, Daikin’s streamer technology has proven to inactivate 99.9% of Coronavirus. (SARS-CoV-2)

Study Done By

Daikin Industries, Ltd., in cooperation with Professor Shigeru Kyuwa, Department of Biomedical Science, the University of Tokyo, and a group of research professors led by Professor Shigeru Morikawa, Department of Microbiology, Okayama University of Science.

Study Method

The team conducted an experiment, wherein they Irradiated the viruses for three hours with Streamer discharge.

Study Results

Source1: “Study report on the inactivation effect of plasma ion generator (Daikin Streamer) on SARS-CoV-2” written by Shigeru Morikawa, Department of Veterinary Medicine, Microbiology Course, Okayama University of Science.

Source2: "Study on inactivation of plasma ion generator (Daikin streamer) against mouse coronavirus" written by Shigeru Kyuwa, Laboratory of Animal Science, Graduate School of Agricultural and Life Sciences, University of Tokyo.

  • Irradiation with Streamer discharge for one hour inactivated 93.6% of coronavirus (SAR-CoV-2) and 91.8% of mouse hepatitis virus A59 (MHV-A59)
  • Irradiation with Streamer discharge for three hours inactivated more than 99.9% of coronavirus (SARS- CoV-2) and mouse hepatitis virus A59 (MHV-A59)

About Streamer Discharge Technology

Streamer technology is a technology that uses Streamer discharge, which Daikin developed in 2004, to perform oxidative decomposition of harmful substances.

What is Streamer Discharge?

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.

How does it function?

  • Streamer discharge’s oxidative decomposition capability is much greater than that of conventional plasma discharge (glow discharge)
  • When combined with air components, these high-speed electrons have a capability for powerful oxidative decomposition that continuously removes odours, bacteria, and indoor air pollutants such as formaldehyde

How the decomposition mechanism of Streamer discharge Technology works

If it were thermal energy, the decomposition strength would be comparable to a heat of approximately 100,000℃1,

*1COMPARISON OF OXIDATION DECOMPOSITION. THIS DOES NOT MEAN TEMPERATURE WILL BECOME HIGH.

  • Massive streamer discharge hits viruses.
  • Streamer discharge hits viruses and decomposes the surface protein through oxidation.
  • The protein destroyed through oxidative decomposition gets fragmented and the streamer discharge reverts to safe nitrogen atoms, oxygen atoms, and water molecules.
  • Surface protein (HA and NA) destroyed by oxidative decomposition.

Disclaimer

This demonstration shows the results of 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).

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