UGREEN on Instagram: "The Beehive was tested in industrial sheds, next to machines that blow hot air all day. Fans were not enough. Regular AC units used too much energy to cool these spaces. The system uses evaporation. Water runs over the terracotta cones. Hot air passes through, the water evaporates and carries heat away. In dry climates, the effect is stronger. In some tests, the space became up to 6°C cooler without any compressor or refrigerant gas. The material choice also matters. Terrac