It seems we’ve been underestimating the power of plastic. After the material was repurposed into makeshift lamps in the Philippines, it’s proving there is little it can’t do. Grey Dhaka in Bangladesh is taking plastic to new limits with a plastic bottle air conditioner that is completely electricity-free.
Repurposed plastic bottles are cut in half and mounted on a board or a grid in accordance with the window size with the bottlenecks facing the inside of the house. The board is then installed on the window… Hot air enters the open end of the bottle and is compressed at the neck of the bottle, turning the air cooler before it is released inside the house.
The device, called the Eco-Cooler, can reduce indoor temperatures by up to 5 degrees Celsius. Correct me if I’m wrong, but I think regular-running electric air conditioners may now be facing a promising contender.
Today, more than 25,000 households have an Eco-Cooler in their homes. It has been installed in places such as Nilphamari, Daulatdia, Paturia, Modonhati and Khaleya.
Inventor Ashis Paul claims his daughter’s physics tutor inspired the Eco-Cooler. If simple DIY projects can combat climate change at no cost, maybe kids should reconsider paying attention in class.