| 摘要 |
PROBLEM TO BE SOLVED: To provide an air blower capable of blowing off air of a desired air volume from each of supply openings while preventing back flow of the air from the supply openings, in the air blower provided with the plurality of supply openings and a blower.SOLUTION: An air blower (1) includes an air distribution passage R, a first blower, a second blower and a filter unit 40. A first air trunk R1 and a second air trunk R2 are defined by a common duct 4C at an upstream side of the air distribution passage R, and defined by different ducts 4A, 4B at a downstream side of the air distribution passage R. The filter unit 40 includes filter portions 41A, 41B and a holding frame 42. By fitting a part of a housing 10 and a part of the holding frame 42, a downstream side of the air distribution passage R is divided into the duct 4A and the duct 4B, and a partitioning wall portion separating the air distribution passage R into the first air trunk R1 and the second air trunk R2 at an air distribution downstream side with respect to the filter portions 41A, 41B is composed of the housing 10 and/or the holding frame 42.SELECTED DRAWING: Figure 11 |
