| 摘要 |
<p>The extractor fan is mounted on a mobile stand which has rear wheels and front legs. The fan unit comprises a centrifugal type fan, fitted inside a circular housing and with a front inlet and a rear outlet. The air passes through a bank of filters over the fan inlet in order to remove suspended particles. At the rear, the outlet is formed by the motor supports onto the housing. The complete unit is fitted to a sleeve which is adjusted for height and inclination on a vertical mast and locked.</p> |
