| 摘要 |
<p>The light fitting has one or more light sources (20), e.g. incandescent bulbs or fluorescent light tubes and an easily interchangeable light shade (17) which iincorporates an electric fan (2) ,used for passing the room air through a fat filter (23) and/or an active carbon filter (13) for removal of tobacco smoke, with the filtered air fed back into the room.</p> |
