The Handycooler is more than just a good looking personal fan, it uses effective evaporative cooling technology by utilizing a water filter to keep you cool. Inside the device is a small sponge you drop water onto. The fan then draws the water over the damp sponge and can cool you off by up to 25 degrees Fahrenheit. The humidifying effect of the cool moist air alleviates allergies and soothes breathing.
It’s basically a handheld swamp cooler. If you live in a hot dry climate like most of Arizona or other desert areas, I’m sure you know exactly what a swamp cooler is and how well they work to cool you off using a minimal amount of energy (especially compared to a standard air conditioner). The Handycooler works on your choices of 4 AA batteries, USB power, or a standard wall outlet. Battery life is a generous five hours and the 7 ounce gadget measures 2.5 x 2 x 7 inches.
Handycooler product page
Tripp Lite Portable Cooling Unit Air Conditioner, Stand Alone Spot Air Cooler, AC, 12K BTU (3.5 kW), 120V, 5-15P Plug (SRCOOL12K)