4 ms·
In to room, via nice HEPA filter, for cleanliness. Ignoring that, In to the room. Fan can not create much vacuum but can create much pressure. Let me give you
by iamgopal 8y ago
In to room, via nice HEPA filter, for cleanliness.
Ignoring that, In to the room. Fan can not create much vacuum but can create much pressure.
Let me give you my most handy example. Imagine a queue. A push can cascade from last person to first person, but a pull can only be apply to last person.
Hence, pressurise the cabin.