I just purchased this product in an attempt to keep comfortable while keeping my idle tune at it's current 4.64%
I am about to deliver a load to Miami, FL on Monday and will be able to test it ,extensively, this week, there and back, across the Southern US where I expect temperatures to be over 100 degrees during the day and over 80 degrees at night.
This is a small, light product about 4 or 5#s. It's dimensions are about 13" x 7" x 16". It will hold 4#s of ice. It is a swamp cooler design, blowing air across ice. Once some of the ice has melted it will mist, also. It's power sources are AC, DC, built in rechargable batteries and 8 D batteries. The fan has three settings and has an adjustable vent.
Reviews say the ice will last about 1.5 to 2 hours or maybe a little longer if you freeze and use your own block ice. That is a limitation, of course. I will probable buy a bag of ice and let it run when I stop for the day while I get something to eat and shower then dump the water and replace it with fresh ice while I go to sleep. Hopefully, by this time I will be asleep and not notice the heat so much. Or maybe I can get by with my window screens and turbo fan.