Archive · 22 Jul 2026
Japan's 'Human Refrigerator' Helps Workers Beat Extreme Heat
Japan has created a special cooling booth called the Do Hiemon Box to help workers stay cool during hot summers.
This booth is like a personal refrigerator for people.
It is designed for one person at a time and helps them cool down quickly after being in very hot places like construction sites or factories.
The booth has a seat inside and blows cool air around the person.
It is not meant to freeze the person but to create a comfortable cooling environment.
The booth is portable and can be used both indoors and outdoors.
It is expected to be used mainly by businesses and organizations that operate in hot environments.
The Do Hiemon Box is a new way to help workers stay safe and comfortable during hot weather.
The Do Hiemon Box is a portable, walk-in cooling booth designed to help people recover from extreme heat.
It is developed by SDRS and distributed by Trusco Nakayama, primarily for workers exposed to high temperatures.
The booth maintains an interior temperature of around 15°C and directs chilled air at approximately 5°C towards key body areas.
It is portable, operates on a standard Japanese power supply, and is priced at around ¥1.5 million (before tax).
The Do Hiemon Box is expected to be adopted mainly by businesses and organizations operating in high-temperature environments.
- Who
- Developed by SDRS and distributed by Trusco Nakayama
- What
- A portable, walk-in cooling booth designed to help people recover from extreme heat
- When
- Sales began in April 2026
- Where
- Japan
- Why
- To provide rapid cooling for workers exposed to extreme temperatures
Proponents of the Do Hiemon Box
Critics of the Do Hiemon Box
Effectiveness in Cooling
Proponents of the Do Hiemon Box
The Do Hiemon Box provides rapid cooling and helps alleviate heat exhaustion symptoms within minutes.
Critics of the Do Hiemon Box
The effectiveness of the Do Hiemon Box has not been independently verified in clinical studies.
Energy Efficiency
Proponents of the Do Hiemon Box
The booth consumes about half the electricity of a typical spot air conditioner, making it energy-efficient.
Critics of the Do Hiemon Box
The energy efficiency claims are based on manufacturer data and may not be fully accurate.
- Official Name
- Do Hiemon Box
- Developer
- SDRS
- Distributor
- Trusco Nakayama
- Interior Temperature
- Around 15°C
- Airflow Temperature
- Around 5°C
- Cooling Modes
- Three
- Auto Shut-off
- After 20 minutes
- Price
- Around ¥1.5 million (before tax), roughly ₹9 lakh
- Sales Began
- April 2026
- Primary Users
- Businesses, factories, construction sites, and other workplaces