为达到充分的通风和旅客舒适度，使用一个通用的冷空气总管来掺混空调组件的新鲜空气和再循环空气。

For sufficient ventilation and passenger comfort a common cold air manifold mixes the pack fresh air with recirculated air.

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有再循环通风系统的写字楼可能会空气不好。

Office buildings with recirculated air can get stuffy and stale.

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空气也可以从客舱空气分配和再循环系统，通过单独的出口，流向厕所。

Air also flows into the lavatories from the cabin air distribution and recirculation system through individual air outlets.

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