Coolfactor has a number inherit unique advantages that apply to the world of indoor agriculture. For example, the dual path system allows you to leverage the outside environment without affecting the gaseous mix of air inside. Why is this important? Plants can yield up to 30% more when the air is enriched with CO2.  Think of this way, during the Jurassic period both animals and plants were much larger and the atmosphere had nearly three times the amount of CO2 as it currently does. What does this have to do with Air Conditioning, you say? Indoor grow facilities use artificial light to precisely illuminate their canopy.  These lights generate copious amounts of heat and requiring substantial cooling year around. So lets say your facility is located in a cold environment or it’s a cool season or you run your lights at night.  Bottom line is it’s cold enough outside to cool the indoor canopy. However if you were to exchange the outside cool air (400-500 ppm CO2) with the heated inside (1,200 – 1,500 ppm of CO2) air you would evacuate and lower the mix of CO2, thus making this a loosing proposition. Unless you were using CoolFactor which can leverage the outside temperature without affecting CO2 levels. Note, plants can only ingest CO2 when the lights are on, therefore heat is being put into the canopy space. This a link to the state of indoor agriculture.