Experimental Data
※The following experimental results are only the results under the experimental environment, and the effects will vary under actual use conditions.
Experimental results of inactivation of novel coronavirus (SARS-CoV-2) by ozone gas jets
[Collaborative research, Institute of Tropical Medicine, Nagasaki University]
Experimental Methods
A solution containing 0.1 ml of novel coronavirus was dropped onto multiple petri dishes placed in a chain bar with ozone gas or air flowing through it, and the petri dishes were collected over time and the amount of infectious virus remaining was quantified using a plaque assay.
Results of the Experiment
(1) In the absence of ozone gas (0.0 ppm), 24% of viruses remained viable after 150 min.
(2) In the presence of ozone gas (1.0 ppm), 97.6% of viruses were inactivated in 90 min, confirming the inactivating effect of ozone gas on SARS-CoV-2.
Bactericidal effect of ozone gas jets on general bacteria
[Nagasaki University Hospital, Department of Laboratory Medicine Collaborative Research]
| Escherichia coli (E. coli) | European Staple Grain bacteria | hay bacillus (Bacillus subtilis) | ||||
| viable cell count (CFU/dish) | Number of sterilization (%) | viable cell count (CFU/dish) | Number of sterilization (%) | viable cell count (CFU/dish) | Number of sterilization (%) | |
| control | 1114 | 0 | 196 | 0 | 3088 | 0 |
| 10min. | 41.7 | 96.3 | 4.0 | 98.0 | 55.0 | 98.2 |
| 20min. | 65.0 | 94.2 | 2.7 | 98.6 | 58.7 | 98.1 |
| 40min. | 15.7 | 98.6 | 3.7 | 98.1 | 121 | 96.1 |
Indoor circulating flow in a jet stream system
[in-house test]
Ozone concentration was measured in a room with a volume of 544 m3 by using the “Jet Fujin Large Scale” and verified that ozone was spread to every corner of the room.
CT value(ppm×min)＝Ozone concentration(ppm)×Hours(min)