DIY Aircondition

Are U sick and tired of too high temperature when U are trying to sleep ?

U need: 1 large polystyreen case, 1 polystyreen sheet, 3 tubes of some kind, an old desk fan ventilator and 4-8 frozen bottles of water(1,5 liter). It works excellent, and does not have that annoying feature that hot air needs to be ventilated out of the room. 4 frozen bottles of water gives you 10-12 degrees cold air for 5-6 hours.

Cut the polystyreen sheet so it fits in a approx 65 degree angle. U should leave 10 cm of space in the bottom, and a tight fit in the top.

Cut out 3 holes for the tubus. The 3 tubes are mounted in the side of the box. They should point upwards, as cold air flows downwards.

Mark the diameter of your fan in the lit. Cut the hole.

Place the fan over the hole, and enjoy the cold stream of air.
I know this doesn't win any design awards, but it gets the job done.