Demonstration of the inactivating effects against the novel Coronavirus (SARS- CoV-2) by Streamer technology

Demonstration

Experimental result

Daikin in collaboration with a group of research professors from the Department of Microbiology in the Faculty of Veterinary Medicine from the Okayama University of Science, led by Professor Shigeru Morikawa, has demonstrated that the Streamer technology has inactivating effects against the novel Coronavirus (SARS-CoV-2).

  • This result was obtained by using a Streamer discharge device for testing in lab conditions.
  • The effect of products equipped with Streamer technology or results in actual use environments may differ.
Professor Shigeru Morikawa
Supervisor Professor Shigeru Morikawa
Department of Microbiology, Faculty of Veterinary Medicine, Okayama University of Science.
Former Director of SARS Countermeasures Office, National Institute of Infectious Diseases (NIID)
 
Streamer irradiation time1 hour2 hour3 hour
Novel Coronavirus (SARS-CoV-2) inactivation rate93.6%99.7%99.9%

Source: "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.

As a result of the test, SARS-CoV-2 was inactivated by 93.7% after 1 hour of Streamer irradiation. After 2 hours, it was inactivated by more than 99.8%, reaching more than 99.9% after 3 hours of Streamer irradiation.

  • This result was obtained by using a Streamer discharge device for testing in lab conditions.
  • The effect of products equipped with Streamer technology or results in actual use environments may differ.

Testing organization

Professor Shigeru Morikawa's led research group at the Department of Microbiology in the Faculty of Veterinary Medicine from the Okayama University of Science

Test method

Two acrylic boxes of about 31L were mounted inside a safety cabinet. One box was equipped with a Streamer discharge device and the other box was not. A see-saw rocking motion shaker was placed in each box, and a six-well plate was placed on top of the motion shaker. Virus solution measuring 0.5 ml was put into each well of the plates, and Streamer irradiation was performed while agitating the solution using the motion shaker (approximately 12 times per minute). Virus solution was collected from two wells every hour for three hours, and viral load was measured. The viral load of SARS-CoV-2 was quantified by the TCID50 method using Vero E6 / TMPRSS2 cells.

 

Source: https://www.daikin-streamer.com/en/corona/

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