As extreme heatwaves become a recurring summer phenomenon, Japanese innovation has introduced a radical solution for thermal relief. Companies SDRS and Trusco have launched 'Do Hiemon,' a personal cooling chamber that resembles a vending machine but functions as a 'refrigerator for humans.'
Technical Specifications and Operation
The stainless steel chamber stands 2.13 meters tall and 1.19 meters deep. Inside, the ambient temperature is maintained at 15°C, while concentrated air cooled to 5°C is directed toward the user's head, neck, shoulders, and back.
- Rapid Cooling: Users feel significantly cooler after just five minutes, while ten minutes of use can alleviate symptoms of heat exhaustion.
- Safety Measures: An automatic 20-minute timer prevents overcooling of the body.
- Efficiency: The device operates via a standard power outlet and is mounted on wheels for easy relocation and installation in outdoor spaces.
Costs and Use Cases
While the unit price is high—approximately €9,000—the operating costs are remarkably low at just €0.09 per hour. Trusco claims the device is more energy-efficient than conventional air conditioning due to its compact design.
Target environments include construction sites, agricultural fields, shopping malls, and sports facilities where immediate relief from heat is necessary. Since its market debut in April, the device has seen significant success in Japan, though no plans for international distribution have been announced yet.
