| 摘要 |
PROBLEM TO BE SOLVED: To provide an entrance which prevents not only an environmental contaminant deposited on clothing but also an environmental contaminant deposited on a sole from being carried into a building.SOLUTION: An entrance 10 comprises an entrance room 14, an air shower room 16 dividing the entrance room 14 into an entering/leaving room 18 and an approach room 20, an entrance door 22 and an exit door 24 of the air shower room 16, a leaving preparation room 30 in which air pressure is set higher than that in the entering/leaving room 18, a first leaving door 32 and a second leaving door 34 provided in the leaving preparation room 30, a leaving preparation room control section 84 which interlocks these exit doors, a footwear storage section 36 provided in the entering/leaving room 18, footwear detection means 86 which detects footwear, and an air shower room control section 84 in which, when the footwear detection means 86 detects footwear, the entrance door 22 is opened, when a person enters the air shower room 16, the entrance door 22 is closed, an air shower is blown to the person who has entered the air shower room for a predetermined time and then the exit door 22 is opened. |
