| 摘要 |
PROBLEM TO BE SOLVED: To increase the air inlet flow to a front inlet port by the involving of the upward wind blown from an upper blow-off port and to efficiently pass cigarette smoke or the like through a filter to purify and disposing the upper blow-off port of an equipment main body at the part lower in level in a specified dimension at the upper surface back part of the equipment main body. SOLUTION: An upper blow-off port 4 of a case 1 forming the equipment main body is disposed at the back part of the case 1 and at the part lower in level by the prescribed dimension H than the upper surface 1a. At this time, the upper blow-off port 4 is set so that a dimension L between the tip 4a and the case upper surface 1a may be >=5 mm and also the dimension H of the part differ in level may be equal to or more than two times of the dimension L. Then the cigarette smoke 7c or the like near the case upper surface 1a is involved by the upward wind 7b from the upper blow-off port 4 and the inlet flow 7e to the front inlet port 2 of the case 1 is increased. Therefore, the cigarette smoke or the like is efficiently cleaned by riding the cigarette smoke or the like on the inlet flow 7a passing the filter 3 and blown off from the upper blow-off port 4. |
