SATO Tap (hand hygiene solution)

SATO Tap (hand hygiene solution)
Solution Overview & Benefits

The SATO Tap is a compact handwashing device that uses gravity and a simple nozzle mechanism to provide controlled water flow from a standard plastic bottle.

  • Enables handwashing without a piped water connection
  • Uses approximately 100 ml of water per handwash
  • Operated using forearm or elbow to reduce hand contact and recontamination
  • Provides a controlled water flow suitable for effective handwashing
  • Compatible with commonly available plastic bottles as water reservoirs
  • Lightweight and compact, allowing placement in homes, schools, or public spaces
  • Includes a soap holder to support regular hygiene practices
  • Requires no installation and can be deployed quickly in different settings
  • Designed as a low-cost option for improving access to handwashing
History & Development
  • Developed by SATO (Safe Toilet), part of LIXIL, a global company focused on water and housing solutions.
  • Launched around 2020, in response to the need for accessible handwashing during the COVID-19 pandemic and broader hygiene gaps.
  • The product was developed through:
    • Field insights from communities lacking access to handwashing facilities
    • Iterative prototyping and testing across multiple regions
  • SATO Tap is part of the broader SATO portfolio, expanding from sanitation (toilets) into hygiene solutions.
  • Recognition:
    • Named one of TIME’s Best Inventions (2020)
    • Finalist in Fast Company World Changing Ideas Awards (2021)
Availability
  • Availability: worldwide
  • Price: typically low-cost (varies by country and distribution model)
  • Public availability: Yes

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