| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of increase of infection risk to a fellow passenger in an elevator because of spread of disease by aerial infection through coughing of a patient in a cage of the elevator.SOLUTION: When coughing sound of a passenger is detected by a microphone in a cage that is connected to a sound/image determination means on a cage, or when an image of a face of a passenger who wears a mask is recognized by a camera, an air purifying device control means connected to both the sound/image determination means and an air purifying device, controls to increase rotational speed of a fan of the air purifying device based on the sound or image information, thereby enhancing air purifying capacity in the cage. |
