NOTIFICATION DEVICE, AIR CLEANER AND NOTIFICATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a notification device capable of reducing a risk of infection to viruses on a user staying in a predetermined area. ! SOLUTION: The notification device includes: virus density calculation means that calculates virus density in a predetermined area; time calculation means that calculates the time of a user staying in the predetermined area; virus exposure amount calculation means that calculates the exposure amount to viruses of the user on the basis of the outputs of the virus density calculation means and the time calculation means; storage means that stores a threshold value of the exposure amount to the viruses; a control section that determines whether the output of calculation means of the exposure amount to the viruses exceeds the threshold value; and notification means that notifies the user according to the output from the control section. ! COPYRIGHT: (C)2015,JPO&INPIT