Rising temperatures in summer kill countless people all over the world each year. Most of these people are from poor households and neighborhoods, where air conditioning is a luxury that they can’t afford.
To help these people cool their houses and in turns possibly save their lives, a Bangladeshi man by the name of Ashish Paul has invented a DIY Eco Cooler, which is not only cheap to construct, but also requires No Electricity to run.
This unique cooler is based on the concept that, when you pass air through a small opening, it gets compressed and cooled on it’s own. While it may not make a huge change in the temperature itself, but with enough openings it can cool down a medium sized room by almost 5 degrees.
The Eco Cooler uses this exact concept, by taking a window sized piece of plastic and cutting equally spaced holes in it. These holes are then used to hold half cut recycled plastic bottles.
This structure is then placed on the windows to the room, with the bottles facing outside. As the air passes through the bottles, it is compressed around the neck and becomes cool.
This air then moves through the opening on the other side of the window and cools the room easily. It may not appear like the most elegant solution to the problem, but is definitely helping the lives of all the people using it.
So far, Ashish has worked with Grameen Intel and Grey Dhaka volunteers to install these Eco Coolers in over 25,000 houses belonging to the poor. Since there is no copyright on the technology, Ashish hopes that this project will be able to help people from all over the world as well.
If you think you can make use of this simple yet effective contraption, then start saving your bottles now.