--<<Ak47 auto>>-- M4

[M4ur]

I will not be able to get the iPower brand but I’m searching for something good (is not necessary right now, this is for my future room)
I find this and I’m thinking a 280 m3/h will be ok

@latewood

OK. Let us do the math.
4’x4’x7’ = 112 CF
CFM is Cubic feet per minute. So it would require a 112 CFM of exhaust one minute to refresh a 4’x4’x7’ tent. There is no such thing, but a 190 even if only operating at 50% or 95CFM would exhaust and refresh this size tent in approx. 80 seconds.

So; you can disagree; However, the math proves you wrong.

Another note. Any fan size will do. It is