Portable swamp air cooler +++++rep. 4 all

Has anyone ever used one of these portable swamp air cooler and did it keep temps. Down during the summer months

i have seen them but not for growing especially since they are swamp coolers they more likely put out alot of humity with them i would think not sure but thats the problem i believe u would have with them

what about places where it grows super dank with high humidity like hawaii and thailand? i live in the desert, i was gonna use it for a greenhouse unless someone says its a terrible idea

Well all i know is im in a 10x10 upstairs with no ac. Here in another month or 2 its going to be 80 and 90 everyday. I gotta keep the temps down and portable ac is like 400 bucks yo