| 摘要 |
<p>The present invention relates to a portable ventilation device enabling to increase an amount of ventilation without adding an extra hole by combining two portable ventilators with one connection element comprising: a first fan and a second fan ventilating as impellers operating through built-in motors; and the connection element connecting to one duct by combining the first fan and the second fan. The present invention can simply increase the amount of ventilation without adding the extra hole by combining the two portable ventilators with the connection element, and is convenient to move by embodying the portable ventilating fan on a tray and by equipping wheels to the tray.</p> |
