Recommended fan


A question from a fellow grower:

hello i have a grow space of 20 x 30 x 80inches with a 600w hps. whats the best recommended fans for extraction and intake? :hotsprings:


Hiya…what are the room temps the grow area is in? If the room is warm, can you bring in cooler air thru venting, in line fans?

That is a small space for that light, minimum size for 600 watts is 40" x 40" (1m x1m), up to 48" x 48" (approximately).
is it a vented hood?

Your area is taller, but a good read…

Grow your grow area larger or down size the light.


i bought 2 of these 2 years ago…pretty much been running non-stop since…no problems to report.


there is a formula to figure “cfm’s” of grow space – figure total air exchange to be about every 30 seconds. Also so “cfm’s” are located on fan’s box