| 摘要 |
<p>A device for efficient positive pressure ventilation comprises a frame (8) provided with wheels (21) and means for coupling to a hitch of a vehicle, and several racks (9, 10) and seats (30a, 30b, 30d) and means for attaching the seats to the racks in a way allowing moving and turning thereof, for placing several fans (1a, 1b, 1c, 1d) side by side and/or one upong another at suitable distances from each other and for directing the fans for providing efficient positive pressure ventilation.</p> |
