| 摘要 |
PROBLEM TO BE SOLVED: To remove the influence of sterilization upon an indoor worker and to sufficiently sterilize bacteria or Eumycota. SOLUTION: In the time zone of daytime set in advance, a centralized control part 4 and an ultraviolet light emitter 8 are driven. At the same time, centralized control part 5 controls the concentration of ozone generated by an ozone generator 7 based on an alarm signal (a) from an ozone sensor 1. Besides, in the time zone of nighttime set in advance, the centralized control part 5 drives the ultraviolet light emitter 8 and controls the concentration of ozone generated by the ozone generator 7 based on an alarm signal (b) from the ozone sensor 2. |
