Have you ever been so uncomfortably hot during a summer heatwave that you jokingly considered climbing inside your kitchen fridge? In Japan, that is no longer a crazy thought—it has now become a reality!
As global temperatures climb and Japan swelters under record-breaking, dangerously humid summer heat, one company has rolled out a mind-boggling solution to keep people from boiling over: Literal “Human Refrigerators.”
Japan’s summers are notoriously brutal, with temperatures regularly blasting past 35°C (95°F) and pushing the risk of mass heatstroke to critical levels. Enter the “Do Hiemon Box” (a play on words roughly translating to “extreme cold”), an oversized, stainless-steel cooling booth designed by industrial equipment supplier Trusco Nakayama.
Forget portable neck fans or cooling wipes. This is effectively a tall, high-tech box on wheels, complete with a glass door, a seating bench, and a standard electrical plug—all entirely dedicated to rapid-cooling human beings.
How Does a Human Fridge Work?
This isn’t a place to kick back and take a nap; it is a rapid-response cooldown pod. Once you step inside and close the glass door, the temperature rescue begins:
- The Chill: The interior is constantly maintained at a brisk 15°C (59°F).
- The Blast: The moment you sit down, a localized jet of 5°C (41°F) air blasts directly over your head, neck, and shoulders.
- The Goal: It is engineered to aggressively drop your core body temperature within just 10 minutes, providing instant relief to stop heat exhaustion and heatstroke in its tracks.
Who Is Buying a $9,500 Cooler?
You might think this is just a quirky novelty, but it is actually a serious lifesaver. Retailing for about ¥1.5 million (roughly $9,500), roughly 200 of these futuristic booths have already hit the market this year.
Because the unit can just be plugged into a standard electrical outlet, it can be wheeled into open-air or industrial locations where installing traditional air conditioning is impossible. They are currently popping up in:
- Sizzling construction sites and steel mills.
- Golf courses and university campuses.
- Disaster evacuation shelters (units were recently deployed to Kumamoto following an earthquake).
The Future of Cooling?
While it might sound like a prop from a sci-fi movie today, the Do Hiemon Box could be a genuine glimpse into our climate-challenged future. With extreme heat becoming the new normal worldwide, the manufacturer is already fielding inquiries from as far away as the United States and Germany to put these units in outdoor shopping malls and summer festivals.
So, the next time you are melting on a crowded summer street, do not be surprised if you find yourself lining up to step inside a giant, human-sized cooler.
Stay cool, and stay tuned to ABT NEWS for more mind-boggling stories from around the globe!

















