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Air conditioning made from PET bottles that doesn't consume energy? Meet the Eco-Cooler, the sustainable invention that is revolutionizing lives around the world!

Written by Deborah Araújo
Published 02/01/2025 às 08:36
Air conditioning made from PET bottles that consumes no energy Meet the Eco-Cooler, the sustainable invention that is revolutionizing lives around the world!
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A sustainable and affordable solution for heat! The Eco-Cooler uses recyclable materials to bring comfort and health to communities without electricity, such as in Bangladesh. Find out how it works!

When the heat hits hard, having an air conditioner at home is not only a matter of comfort, but also of health. However, not everyone has access to this type of technology, whether due to the price of the device, the cost of the electricity bill or, in some regions, even the lack of electricity. It was in this scenario that the Eco-Cooler emerged, an air conditioner made from PET bottles, which is transforming lives in places like Bangladesh, where access to basic resources is extremely limited. Read on to learn more about this air conditioner made from recyclable materials.

How does air conditioning made from recyclable materials work?

Created by Ashis Paul, the Eco-Cooler is a revolutionary system that uses recyclable materials, such as PET bottles and resistant cardboard, to provide relief in regions where the heat reaches 45°C. The genius of the project lies in its simplicity: it does not depend on electricity and uses only the wind to function.

The idea is for hot air to enter through the larger part of the bottle, located outside the house. When the air passes through the tapered part of the bottle, it compresses, cooling down before entering the room. The result? A temperature drop of up to 5°C inside the house, creating a feeling of freshness similar to that of a conventional air conditioner.

The impact of Eco-Cooler in underserved regions

The Eco-Cooler was born in a village in Bangladesh, where houses made of tin and metal amplify the unbearable heat. In these conditions, many residents do not have access to fans or air conditioning systems due to the lack of electricity. That's when Ashis Paul saw an opportunity: turning trash into a solution.

PET bottles, which were previously discarded inappropriately, now have a vital purpose. The project not only improves the quality of life of residents, but also promotes recycling and sustainability, contributing to a cleaner environment.

Why is the Eco-Cooler a sustainable solution?

With increasing environmental concerns, the use of recyclable materials as a basis for creating practical solutions has become increasingly relevant. The air conditioner made from PET bottles perfectly exemplifies how innovation can be an ally of sustainability. Here are the main reasons that make the Eco-Cooler so sustainable:

  1. material recycling: PET bottles and cardboard, which often end up polluting the environment, are reused to create the system;
  2. Zero energy consumption: The Eco-Cooler does not need electricity to operate, reducing the carbon footprint;
  3. Accessibility: It is a cheap and practical alternative, which can be done by anyone with access to basic materials.

How to build your own Eco-Cooler

Whether you want to try the idea or are just curious, building an air conditioner out of recycled materials is easier than it seems. Here’s a simple step-by-step guide:

  1. Gather the necessary materials:
    • PET bottles of similar sizes (the narrower the bottle, the better);
    • A sturdy board, such as thick cardboard or light wood;
    • Basic tools, such as scissors and drill.
  2. Prepare the structure:
    • Cut the board to the size of the window where the Eco-Cooler will be installed;
    • Make holes in the board with the diameter of the bottle mouths, keeping a uniform distance between them.
  3. Assemble the system:
    • Cut the bottles in half and fix the larger part to the outside of the plate, with the tapered part facing inwards;
    • Use the bottle caps to screw them onto the plate, ensuring they are securely attached.
  4. Install in window:
    • Fit the Eco-Cooler into the window with the funnels facing into the room and the larger part of the bottles facing out.

And voila! You will have a functional system that can significantly reduce the temperature of the environment.

Interesting facts about air conditioning made from recyclable materials

  • The idea behind the Eco-Cooler is based on basic physics principles, which explain why compressed air gets cooler;
  • The inspiration for the project came from something simple: the difference in temperature when we blow with our mouth open and with our lips closed;
  • Although it was created in Bangladesh, the system can be adapted to any region with high temperatures.

A cooler, more sustainable future with air conditioning made from PET bottles

The Eco-Cooler is not just an innovative system; it also represents a new way of thinking about how we tackle climate challenges. In a world where resources are limited, solutions like the air conditioner made from PET bottles prove that creativity can be a powerful tool to transform lives.

Whether for underprivileged communities or for those seeking ecological alternatives, the Eco-Cooler is proof that we can do more with less. So, how about getting your hands dirty and trying this sustainable idea in your home? The planet — and your wallet — will certainly thank you!

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Deborah Araújo

I write about renewable energy, automobiles, science and technology, industry and the main trends in the job market. With a close eye on global developments and daily updates, I am dedicated to always sharing relevant information.

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