| 摘要 |
A stairwell (7) in a split or multi level home provides access to and air communication with lower-level (3), mid-level (9) and upper-level (11) rooms, resulting in a chimney effect of continuously drawing higher temperature and highest temperature room air from the lower-level room (3). Vertically directed downward axial fans (23) of a room-air interceptor device (1), emplaced in the lower-level room (3) at its ceiling (21) and at its entrance (5) to the stairwell (7), not only eliminates such chimney effect but also intercepts and recirculates temperature-layered room air in the lower-level room (3), resulting from convection or gravity circulation, to dissipate such temperature-layered room air to render the room air temperature in the lower-level room (3) more uniform and, hence, more comfortable for human habitation and enjoyment.
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