The fresh air ventilator is an important equipment of air's quality regulating.

新风换气机是调节空气品质的重要设备，换热器是新风换气机的关键部件。

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The result of analysis show that adopting the fresh air ventilator can reach to enhance energy efficiency.

基于这个分析，认为引入新风换气机可以达到节能的目的。

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Very well sealed buildings, on the other hand, like this one will have a heat recovery ventilator, which brings in outdoor air.

很好密封另一方面建筑物，像这样将有一个热回收通风机，这带来了室外空气。

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Dr Chris Guz explained that patients often reacted as the breathing tube of the ventilator was placed in their air passage.

BBC: Barry McCarney

Later, the a tube can be passed down the throat or nasal passages so that air can be mechanically forced in by a bag or a ventilator.

BBC: Minutes matter

Mr Rogers's home features a heat-recovery ventilator a device in his basement that filters incoming air and exchanges heat between incoming and outgoing air.

ECONOMIST: Green homes