Spending summer working in a hot office without a proper air cooler is not lots of fun. The Evapolar 2 is a compact air conditioner that aims to address that. This app enhanced cooler allows you to adjust the temperature and humidity level from your smartphone. It not only brings evaporative cooling to your office but also purifies the air.
The unit can be powered using a USB cable. It only consumes 10W of electricity. Just refill the tank every few hours, and you are ready to go.