@tomtanya84 @bryan_kirschner Not really buying that. 0.1 ACH is 10 hours to change the air. Even if it moved perfectly parallel, people move around and will inhale exhaled air at some point. It's true that specific air flow patterns matter not just average ACH.
@tomtanya84 @bryan_kirschner 不是真的买那个。 0.1 ACH 换气需要 10 小时。即使它完全平行移动，人们也会四处移动，并会在某个时刻吸入呼出的空气。确实，特定的气流模式不仅仅影响平均 ACH。