#Japan #Tokyo #PHASE FREE #Eriano #toilet trailer

Eriano's Groundbreaking Ultra-Water-Saving Toilet Trailer

In a significant stride towards improving public sanitation in disaster scenarios, Eriano Inc., headquartered in Chiyoda, Tokyo, has announced that its ultra-water-saving toilet trailer has officially received Phase Free Certification from the Phase Free Association. This innovative product aims to address the pressing issue of toilet accessibility in evacuation situations, particularly heightened by recent natural disasters.

Background to the Certification

The necessity for efficient restroom solutions has become critical in recent years as large-scale natural disasters frequently disrupt communities. A recent report released on December 19, 2025, by the Tokyo Metropolitan Government anticipates that an estimated 57,000 toilets will be lacking in the wake of a major earthquake in the Tokyo area. Particularly concerning is the impact of water shortages and power outages on toilet hygiene, which poses severe health risks and undermines human dignity.

To tackle this urgent issue, Eriano has developed a toilet trailer designed with a unique concept of "Comfort × Mobility × Phase Free." The trailer functions as a public restroom during regular times and serves as an independent, disaster-relief sanitation facility by utilizing tanks for water supply and drainage in emergency situations. This versatility aligns with the core philosophy of the Phase Free Association, which led to the product’s recent certification.

Praise from the Certification Review Committee

Traditionally, public restrooms face challenges related to construction costs, installation timelines, and site limitations, making them difficult to implement. Furthermore, these facilities often become unusable during emergencies due to water shortages and power failures. The ultra-water-saving toilet trailer circumvents these limitations by being fully constructed in a factory prior to transport, allowing for rapid deployment at a lower cost. In regular conditions, it serves as a comfortable public restroom in diverse locations.

An essential feature of this trailer is its ability to operate independently during water shortages, thanks to its ultra-water-saving capabilities along with water supply and drainage tanks. This allows the trailer to swiftly relocate to disaster-affected areas, serving as a hygienic toilet solution for evacuation centers. Its trailer-like mobility also makes it easier to deploy in regions typically challenged by insufficient sanitation infrastructure.

Eriano’s toilet trailer is positioned to establish a sustainable Phase Free societal infrastructure, maintaining hygiene standards and comfort during both everyday use and emergencies. Widespread application and dissemination of this innovative solution are highly anticipated.

Future Outlook

With the acquisition of Phase Free Certification, Eriano aims to further promote its ultra-water-saving toilet trailer. The company intends to collaborate with local governments and private enterprises to enhance disaster preparedness in communities, striving to ensure that everyone can live comfortably, even amid emergencies.

For more information on the ultra-water-saving toilet trailer, Eriano recently released a press statement regarding its selection for the "Disaster-Use Toilet Trailer Public Proposal" in Higashi-Izu Town, Shizuoka Prefecture. Scheduled for installation in a disaster prevention park in March 2026, this initiative underscores the company's commitment to contributing to local communities through innovative sanitation solutions that balance emergency readiness with everyday usability.

About Eriano Inc.

Eriano is dedicated to "creating new values in areas, connecting the world, regions, and people." With a team led by seasoned architects, the company leverages its design expertise and partnerships with large corporations to offer the highest-quality trailer houses in terms of design and functionality.

Contact Information for Inquiries:
Eriano Inc.
Contact: Katsurou
Phone: 03-6826-2377
Inquiries can be made through the contact form on Eriano's website.

About Phase Free Certification

Administered by the Phase Free Association, the Phase Free Certification signifies that products and services hold value both in daily life and during emergencies. For more details, visit Phase Free.