I think the reason they aren't really that awesome is that you have to have venting ANYWAY to prevent your plants suffocating.
It may cool and clean the air, but it doesn;'t replace the precious CO2 that the plants need to live.
stinkyattic Reviewed by stinkyattic on . Anyone using portable AC unit? It would seem to me that if you were using a small dedicated room it is smarter to put a portable AC unit in a semi-sealed room then to bother with venting. The AC recycles, cools and (most) cleans the air. All have a temp gauge. Most will also pull out humidity, if needed. Sounds good on paper...as least I think. Anyone? Rating: 5