| 摘要 |
PURPOSE:To make a smoking place in a room without any obstacle such as a screen. CONSTITUTION:One or more air cleaner main bodies 3 with an air outlet 8 making a downward air curtain 7 are provided on a ceiling 4 in such a way that a room 2 is surrounded by the air curtain 7 and a space 5 is made thereby and an air suction inlet 9 sucking the air in the space 5 and an air exhausting outlet 11 exhausting the air out of the space 5 are provided in the air cleaner main body 3 and an air cleaner and a fan are provided between the air suction inlet 9 and the air outlet 8 and the air exhausting outlet 11. By setting the amt. of exhaust from the air exhausting outlet larger than the amt. of outer including air of the air curtain 7, the inside of the space 5 is made negative pressure and the contaminant in the space 5 does not flow out and a clean air can be made thereby. |
