A spotless bathroom isn’t just about looks — it’s about health, hygiene, and peace of mind. Traditionally, that’s meant relying on harsh chemical cleaners that can harm the environment and require constant upkeep. TOTO, the global leader in bathroom innovation, has changed the game with EWATER+, a revolutionary cleaning technology that keeps your toilet and bidet hygienic, naturally.
This guide breaks down how EWATER+ works, where it’s used, and why it’s an eco-friendly, time-saving upgrade for every home or property. You’ll also discover how this technology powers the TOTO S7A, S7, and S5 WASHLETs—the brand’s most advanced and in-demand models.
What Is EWATER+?
EWATER+ is TOTO’s advanced cleaning system that uses electrolyzed water, not chemicals, to sanitize your toilet bowl and bidet wand. It transforms regular tap water into a safe, effective cleaning agent that eliminates bacteria and residue, then reverts to plain water.
How It Works:
- Water is Drawn In: EWATER+ uses your home’s tap water supply.
- Electrolysis Occurs: The system uses a small electric current to create electrolyzed water (containing hypochlorous acid), a natural disinfectant.
- Self-Cleaning Action: The electrolyzed water mists over the WASHLET wand and toilet bowl, sanitizing surfaces.
- Safe Reversion: Within hours, it turns back into normal water—safe for your plumbing and the planet.
No harsh chemicals. No refills. No maintenance. EWATER+ cleans automatically every time you use your toilet or bidet.
Where EWATER+ Is Used
TOTO has integrated EWATER+ into many of its WASHLET® bidet seats and toilets to keep the most important areas, the wand and bowl, continuously clean.
1. Self-Cleaning WASHLET Wand
The WASHLET wand is automatically sanitized with EWATER+ before and after every use. This ensures every user enjoys a fresh, hygienic experience—no manual cleaning required.
2. Cleaner Toilet Bowls with PREMIST + EWATER+
EWATER+ works with TOTO’s PREMIST feature for next-level cleanliness:
- Before use: A fine mist of water coats the bowl to prevent waste from sticking.
- After flushing: EWATER+ mists the bowl to sanitize it, breaking down bacteria and residue.
Models like the TOTO S7A and S7 use these technologies together to keep your toilet bowl cleaner longer, reducing the need for scrubbing and chemical cleaners.
Compare the TOTO S7A, S7, and S5 WASHLETs
| Feature | TOTO S7A | TOTO S7 | TOTO S5 |
| EWATER+ Technology | ✔ Self-cleaning wand & bowl | ✔ Self-cleaning wand & bowl | ✔ Self-cleaning wand |
| PREMIST Feature | ✔ Yes | ✔ Yes | ✔ Yes |
| Automatic Lid | ✔ Yes | — | — |
| Heated Seat & Dryer | ✔ Adjustable | ✔ Adjustable | ✔ Adjustable |
| Remote Control | ✔ Premium slim remote | ✔ Premium slim remote | ✔ Classic remote |
| Deodorizer | ✔ Automatic | ✔ Automatic | ✔ Automatic |
| Price Range | $$$$ (Premium) | $$$ (High-End) | $$ (Mid-Range) |
Each of these models delivers exceptional hygiene through TOTO’s EWATER+ system. The S7A and S7 offer premium comfort features like automatic lids and slim remotes, while the S5 provides a balance of value and luxury. Compare them all here →
Why Choose TOTO with EWATER+
1. Enhanced Hygiene with Less Effort
EWATER+ automatically sanitizes after every use, maintaining a cleaner toilet while saving you time and labor. For property managers or contractors, that means fewer maintenance calls and consistently fresh restrooms.
2. Eco-Friendly and Chemical-Free
Unlike bleach-based cleaners, EWATER+ uses only water and electricity, producing zero harmful runoff. It’s a sustainable cleaning solution ideal for green building projects and eco-conscious homes.
3. Long-Term Cost Savings
While a TOTO toilet or WASHLET with EWATER+ may cost more upfront, it saves money over time by eliminating:
- Chemical cleaners
- Disposable scrubbers
- Replacement cartridges
The durable construction ensures longevity and minimal upkeep—a smart investment for both homeowners and property managers.
Upgrade to a Cleaner, Smarter Bathroom
TOTO’s EWATER+ technology is more than a convenience, it’s a commitment to cleaner living and environmental responsibility. If you’re ready to elevate your bathroom hygiene and reduce your environmental footprint, explore our collection of TOTO WASHLET® bidet seats and toilets with EWATER+.
Experience the future of clean, no chemicals required.
Shop TOTO’s EWATER+ WASHLETs — including the S7A, S7, and S5
