| 摘要 |
<p>An air conditionned room forming a transportable cabin (1) has a front wall (7) with an entrance (13). A machine such a tablet press (41) is mounted therein. Above the entrance (13) there is disposed a conduit (17), the height of which is adjustable, for creating an air curtain (71). Before the ceiling (11) there is a fan (29), which can be adjusted at a desired level and around a horizontal axis, parallel to the wall (7). A slightly turbulent air blast (73) is thus directed against the machine (41). At the bottom of the rear wall (9) there is mounted an aspirating member (43) connected to the inlet of two fans (27), the outlets of which are connected to the members (17, 29), the air entering the cabin being purified by filters (25). The aspirating surface (45) of the member (43) is obstructed behind the machine (41). The air impurities concentration around the machine is thus kept low with a low energy consumption.</p> |
