| 摘要 |
<p>A device intended to produce a pressure difference in and/or a flow of a gas between an accumulation of the gas beneath a foundation (7) of a house and a surrounding in order to remove the gas from the accumulation of the gas beneath the foundation (7) of the house, the device comprising a fan house (23) and a fan unit (25) arranged within the fan house (23), the fan unit (25) comprising at least one fan (29) arranged to produce the pressure difference in and/or the flow of the gas.</p> |
