“Human Washing Machine” Sounds Terrifying: Manufacturer Claims It “Can Even Cleanse the Soul”

Japan’s Science Inc. has officially launched its groundbreaking product, the “Mirai Human Washer.” First unveiled at the 2025 World Expo in Osaka, this innovative device is now available to Japanese consumers. The machine functions as a high-tech, automated spa bath, capable of cleansing the entire body in just minutes. Users simply step into the pod, recline comfortably, and let the technology take over.

Inspired by a 1970s Japanese invention, the ‘ultrasonic bath pod,’ this modern iteration goes beyond its predecessor. The original egg-shaped pod filled with warm water and offered massage features. Today’s version seals the user inside, employing microbubbles for a thorough cleanse, followed by a rinse and dry cycle, all while playing soothing music.

According to company spokesperson Sachiko Maekura, the Mirai Human Washer not only cleanses the body but also “purifies the soul.” Integrated health sensors monitor vital signs, ensuring user safety and comfort throughout the process.

The Human Washing Machine

The entire cycle lasts approximately 15 minutes, requiring no effort from the user. This concept traces back to the 1970 Osaka Expo, where Sanyo Electric (now Panasonic Holdings) first showcased the idea. Science Inc. Chairman Yasuaki Aoyama, inspired by childhood memories of this innovation, revived it using cutting-edge technology. Its success at the 2025 Osaka Expo led to its commercialization.

Measuring 2.5 meters long, 1 meter wide, and 2.6 meters tall, the pod accommodates most users comfortably. Microbubbles penetrate pores, removing oil, dirt, and dead skin cells—a technique already popular in Japanese luxury spas. Built-in sensors continuously monitor vitals to prevent health risks like fainting or panic attacks.

What sets the Mirai Human Washer apart is its AI integration. Sensors embedded in the seat collect detailed biometric data, allowing real-time adjustments to water temperature and pressure for a personalized experience.

Priced at 60 million yen (approximately $500,000), the machine targets high-end commercial spas rather than home consumers. Its primary placements will likely include luxury hotels, Japanese onsen resorts, theme parks, wellness spas, and exclusive retreats.

Limited Production

Science Inc. plans to handcraft 40–50 units initially. An unnamed Japanese hotel has secured the first unit, with 5–8 additional pre-orders from prospective clients. Given its limited availability and cost, the device transcends basic bathing functionality. It symbolizes Japan’s commitment to automation and robotic care solutions, particularly for its aging population.

This prototype envisions future automated eldercare systems and fully autonomous bathing facilities. As Science magazine notes, “Advancing technology and scalable production could eventually yield a more affordable home version.”