| 摘要 |
A small sized air cleaning device is disclosed for almost complete filtering of the numerous particles of the contaminated air utilizing a combination of various filters. A porous cylindrical housing (6) surrounding a stainless steel protection screen (7) with many minute holes (7') in the surface thereof is installed on platform (1) containing a fan (5) with many blow ports (3) and threaded holes (4) in the wall of the upper projection (2). Within the stainless steel protection screen (7) are filled sequentially with a pre-filter (9), an active charcoal filter (10), a magnetized filter (11); an active carbon filter (2), a resin filter (13), and a post-filter (14). Many prolonged holes (18) are formed in the wall of the center of the lid projected downward on to the cylindrical housing (6), and the lid (17) with a projection(18) having a screw (20) is inserted in a vent hole (16) and assembled with the platform (1).
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