Experimental Result
Daikin in collaboration with a group of research professors from the Department of Microbiology at the Faculty of Veterinary Medicine of the Okayama University of Science, led by Professor Shigeru Morikawa, has shown that STREAMER technology has a deactivating effect against the novel Coronavirus (SARS-CoV -2).
*These results were obtained using a STREAMER discharge device for testing under lab conditions. The effect of products equipped with STREAMER technology or the results in the actual use environment may differ.
Department of Microbiology, Faculty of Veterinary Medicine, Okayama University of Science.
Former Director of SARS Countermeasures Office, National Institute of Infectious Diseases (NIID)
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, Course in Microbiology, Okayama University of Science.
As a test result, SARS-CoV-2 was inactivated more than 93.6% after 1 hour of STREAMER irradiation. After 2 hours, it was deactivated by more than 99.7%, reaching more than 99.9% after 3 hours of STREAMER irradiation.
*These results were obtained using a STREAMER discharge device for testing under lab conditions. The effect of products equipped with STREAMER technology or the results in the actual use environment may differ.
Testing Organization
The research group led by Professor Shigeru Morikawa in the Department of Microbiology at the Faculty of Veterinary Medicine of the Okayama . University of Science
Testing Method
Two approx. 31L acrylic boxes are installed inside the safety cabinet. One box is equipped with a STREAMER release device and the other box does not. A teeter-totter shaker was placed in each box, and a six-well plate was placed on top of the mobile shaker. 0.5 ml of virus solution was inserted into each plate hole, and STREAMER irradiation was carried out while stirring the solution using a mobile shaker (approximately 12 times per minute). Viral solutions were 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.
