I would be using it on the low setting. Think that will do the trick? Also, I am trying to figure out how to use PC Fans in the flower box also for extra ventilation. I have 3 120mm 90CFM PC fans that I was going to hook up to a fan controller and use also for exhaust. I just need to figure out how to carbon filter pc fans for this. Some say they are not strong enough for filters. What if I had one fan pulling air from inside box then the filter then another fan exhausting out of box?

Or maybe two of these fans side by side running to a rectangular filter tube?