@ColchesterDeon @JimRosenthal4 It's a well known, though heavily suppressed and spun by the industry. Considering extreme density, airplane vent is fair to poor, and this ignores situations (e.g. on the ground, w/vent reduced or off) when the may be even much worse than usual.
https://www.ashrae.org/file%20... https://t.co/zRSPSiBEFk
@ColchesterDeon @JimRosenthal4 这是众所周知的，尽管被业界严重压制和旋转。考虑到极高的密度，飞机通风口相当差，这忽略了可能比平时更糟的情况（例如在地面上，通风口减少或关闭）。
https://www.ashrae.org/file .. . https://t.co/zRSPSiBEFk