“Cold Tube” Cools Without Air Conditioning

Air conditioners guzzle power and spew out millions of tons of carbon dioxide daily and they are not always healthy — constant exposure to central A/C can increase risks of recirculating germs and cause breathing problems. Air conditioners work by cooling down and dehumidifying the air — an expensive and not particularly environmentally friendly proposition. To address these problems, researchers developed the Cold Tube, which works by absorbing the heat directly emitted by radiation from a person without having to cool the air passing over their skin. This achieves a significant amount of energy savings.