Ventilation questions

Got this 8" hurricane inline duct fan. 745 cfm. I'm kinda new to this and I'm trying to get it down. I figure after doing the math that the fan is actually bigger than what I need, but I'm also going to install my charcoal filter for odours and my friend suggested that I utilize a hepa filter since I'm pulling cold air from my attic, essentially making it my lung room. The room has vaulted ceilings so the distance between the lowest point of the ceiling to the floor or bottom of the tent, where the fresh air will be pulled from, is 9ft. So after all this, will this fan be sufficient to do all this, or no. Any help or opinion would be greatly appreciated. Much thanks



(BTW, I have a 10 in booster fan that claims to do 500 cfm.)

What you’re trying to do and specifically what you need help with isn’t crystal clear. Can you re-explain your problem again ?

To be decisive, will this fan by itself, be able to properly vent my room, even with all the extra equipment hindering it, when I throw them into flower. (1000w hps with a wing reflector, and an led that pulls/preforms at 390 actual watts). I'm at a steady 81°f with them on, and I drop to 68° with them off. I guess I probably wont know until its installed and I'm running it with all the lights and equipment on. Idk. I'm kind of confused as well

(My R.H peaks at about 49%)

what size is your growing space?
thats all that really matters here and you havent said.
That fan is enough for a 10x10 - 12x12 room, but you arent going to be able to use the fan to keep your tent cool if your ambient temp outside the tent is the same

5×5×8. Temp of my house and ievery room in it is 65°

I think it’s too much. It may drop the rh too low

MR.NICE.GUY.1990 said:

5×5×8. Temp of my house and ievery room in it is 65°

Click to expand...

Damn you keep your house on the cool side. Get a speed controller and simply adjust as you go.