Fresh air in Grow room or is AC unit fine?

UncleFat-Nug

Active Member
I have a grow that I have no out side air coming in only Mini spilt a.c. bringing my cold air in ,Dehumidifier , fans and inline fan removing air. I have good negative pressure so my room is pretty air tight. Do you need fresh air coming in? I have not had any problem with my grows . I was discussing this with some people and there saying i must bring air in from outside(fresh air)? I just don't see why i would want that for my indoor grow. Seems like there could be possibility of bugs,smells etc.. Please let me know your thoughts on my set up or do a lot of indoor grows have fresh air coming in?
 

Lordhooha

Well-Known Member
I have a grow that I have no out side air coming in only Mini spilt a.c. bringing my cold air in ,Dehumidifier , fans and inline fan removing air. I have good negative pressure so my room is pretty air tight. Do you need fresh air coming in? I have not had any problem with my grows . I was discussing this with some people and there saying i must bring air in from outside(fresh air)? I just don't see why i would want that for my indoor grow. Seems like there could be possibility of bugs,smells etc.. Please let me know your thoughts on my set up or do a lot of indoor grows have fresh air coming in?
Mini splits don't have a fresh air intake like traditional hvac units. You want some fresh air or at least some sort of air exchange especially at night when lights shut down.
 
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