发明授权
EP0681674B1 LUFTTECHNISCHE EINRICHTUNG 失效
LUFTTECHNISCHE EINRICHUNG

LUFTTECHNISCHE EINRICHTUNG
摘要:
The invention pertains to a ventilation device wherein the air-moving unit (20) delivers at least a portion of the air in ambiant air mode, pulsed at very low frequency using at least one chamber (6) of changeable volume which is connected with the room (2) by way of at least one air passage (21).
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