Ventilation question

[KGBudman]

I need to vent a 10 x 13.5 x 12 ft room. I am using an 8" value line fan(745 cfm). I need to put the inlet on the back wall of my shop and duct it 10' to the room and want to use it as a passive intake. Will an 8" inlet do the trick or should it be a 10" inlet since it is passive?

 

[Ilovebush]

Hey, ur intake can should be small compared to the exhaust as negative pressure is favoured in any grow.

 

[KGBudman]

Hey, ur intake can should be small compared to the exhaust as negative pressure is favoured in any grow.

Thanks, I am aware that neg pressure is preferred over positive but, wouldn't I still have neg pressure with 10-12 ft of
10" "passive" duct?

 

[209 Cali closet grower]

should work just fine

 

[KGBudman]

should work just fine

You mean an 8" should work just fine? Or 10?