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Zero Electricity Air Cooler - AC Using Plastic Bottles

Daulatdia, Rajbari where 28,000 people live without electricity in tin huts. Temperature reach 45°C during the summer, making homes unbearable to live in. Can a simple idea make lives better for people without electricity? The Zero Electricity Air Cooler can solve this problem

This is how it works?

Blow with your mouth open and feel the air. Now, blow with your lips pursed eco coolers do the same.

But with repurposed bottles as hot air passes through the bottleneck compresses  and cools the air dropping temperature by 5°C.

A simple idea, that is being adopted by villages across the country and making people's lives a bit more bearable.