Smart Toilet (Japanese): What It Is and How It Works [2025 Guide]

In recent years, technology has evolved from a mere “extra” into an essential part of daily well-being. The Japanese toilet—also known as a smart toilet—is not merely a WC with controls: it is a new form of hygiene that replaces the friction of paper with tempered water and air drying, offering precise and comfortable control that enhances quality of life from the very first use. Cleaner, gentler on the skin, and more accessible for everyone, it transforms a basic routine into a small ritual of comfort.

Popularized in Japan and refined over decades, it has now spread to homes worldwide. The combination of engineering and design offers a comforting and pleasant experience… and also a more sustainable one: less paper, optimized flushing, and more efficient resource use.

With this understanding—what it is and why it matters—let's move on to its features and see, one by one, how they make a difference in daily life.

If you would like an overview of smart toilets, read the main smart toilet guide.

Hands-Free Use: Sensors for a Cleaner Bathroom

Automatic Lid/Seat Opening and Closing

The smart toilet detects your approach and opens the lid and also the seat. When you finish, it closes automatically or with a gesture near the sensor. All without touching anything.

Key Benefits:

• Enhanced Hygiene: Avoid touching high-contact surfaces (lid/seat).

• Fewer Germs: Reduce bacterial transfer between hands and surfaces.

• True Convenience: For busy hands, children, or the elderly → easy and dignified access.

• Tidiness and Aesthetics: Lid always closed, visually cleaner bathroom.

*With ELORA toilets, you can adjust the opening distance according to your needs and the size of the facilities.

Automatic flush

When you stand up, the sensor interprets that you have finished and activates the flush, optimizing water usage. You can also manually activate it from the remote control or side dial.

Key Benefits

• Hygiene + Zero Contact: No need to touch the flush button or the wall.

• Always Impeccable: Prevents "forgetting" to flush and keeps the toilet ready for the next use.

• Efficiency: In advanced models, adjusted flush (water saving).

Smart Heated Seat: Real Comfort All Year Round

What it is and how it works:

The seat features 4-level adjustable heating and a thermal sensor that detects ambient temperature to auto-regulate the heat stably (without spikes). The surface is made of antibacterial material, designed to care for and protect the skin during daily use.

Benefits You Will Notice:

• Immediate Comfort: Say goodbye to the “cold seat,” especially in winter or poorly heated bathrooms.

• Constant Temperature: Auto-regulation prevents sudden changes (better experience for sensitive skin).

• Extra Hygiene: The antibacterial finish inhibits the proliferation of microorganisms on the surface and facilitates cleaning.

• More Accessible for Everyone: Elderly individuals or those sensitive to cold find the comfortable spot without having to adjust every time.

How to Make the Most of It:

• Start at a low level and adjust the temperature gradually; let the sensor do its work.

• Activate eco mode (if your model allows) at night or when you are not home.

• Clean with a soft cloth and a neutral product to maintain the antibacterial finish.

Foam Shield: Anti-Splash and Anti-Odor Barrier

What it is and how it works:

When the foam shield is activated, the toilet generates a dense layer that floats on the water and acts as a physical barrier. This film reduces direct contact with the water surface, prevents splashes, blocks a significant portion of odors, and leaves the inner walls less exposed. The system uses an integrated tank for easy and practical refilling of the foaming agent.

Important Benefits:

• Fewer Splashes: The barrier cushions impact, keeping the bowl and surroundings cleaner.

• Odor Control: The foam seals the water surface, minimizing emanations.

• Antibacterial and Non-Stick Effect: Helps inhibit bacterial proliferation and makes it harder for dirt to adhere, facilitating subsequent cleaning.

• More Pleasant Experience: The bathroom feels more hygienic and discreet from the first use.

How to Use It Effectively:

• Activate the mode before sitting down so the foam forms a complete barrier. You can also use it automatically every time you sit down.

• Refill the tank when you notice reduced density or coverage (frequency depends on usage).

• Use only compatible manufacturer refills to maintain density and hygienic effect.

Water Cleansing: Spray Types and Instant Heating

How it works and why it cleans better:

When you press the bidet button, the system activates an instant heater (on standby) that delivers tempered water instantly and at a constant temperature. The retractable nozzle emits a spray that you can adjust in pressure, temperature, and position—and, depending on the mode, it can mix water + air or oscillate to better cover the area.

The real benefit? Water directly and uniformly washes away residue, something paper doesn't always achieve without multiple passes. Furthermore, water cleansing reduces friction on sensitive skin, prevents micro-abrasions, and leaves a more complete feeling of hygiene with less irritation. In summary: you control how, where, and with what intensity you clean yourself, achieving more effective and gentler hygiene for your skin.

Spray Types:

1) Rear Wash (deep and precise)
Spray with higher pressure for a more complete cleaning of the posterior area.

• Adjustable in intensity and temperature.

• Ideal for those who want a feeling of consistent cleanliness with fewer paper passes.

• Tip: Start at low pressure and gradually increase.

2) Feminine Wash (soft and aerated)
Mixes water + air for a gentler and wider spray in the anterior area.

• Designed for moments requiring more gentleness (e.g., menstruation, pregnancy) and for general feminine care.

• Tip: Use tempered water and a gentle pressure level as default.

3) Oscillating / Spa Wash
The nozzle moves back and forth to better cover the area.

• Improves coverage without increasing pressure.

• Tip: Perfect if you share the toilet and each person seeks a different setting.

Settings that make a difference:

• Intensity and temperature: fully adjustable; save your favorites if your model allows profiles.

• Spray position: micro-adjustments to hit the mark the first time without moving from the seat.

System Hygiene (Nozzle Self-Care):

• Self-cleaning before and after each use (automatic rinse).

• UV light on the nozzle after use, which helps reduce microorganisms on the emitter itself.

• Extra Peace of Mind: Everything happens automatically.

“Super-Typhoon” Drying: Dry in Under 30 Seconds

What it is and how it works:

After washing, ELORA toilets activate their “super-typhoon” drying: an airflow of up to 29 m/s that eliminates moisture in under 30 seconds. The temperature is adjustable in 4 levels and the air speed in 5 levels, ensuring drying is fast, comfortable, and tailored to you. The result: real hygiene without paper, without waiting.

Why it makes a difference:

• Speed = convenience: <30 seconds and done. A short cycle avoids that feeling of “waiting for the dryer.”

• Consistent efficacy: high airflow removes moisture at the root, not just “caressing” the water.

• More hygiene, less friction: by eliminating (or minimizing) paper, you avoid chafing and micro-irritations.

• At your pace: 4 temperatures and 5 speeds allow you to choose between tempered comfort or express mode.

• Sustainable daily: less paper = less waste and fewer clogs.

How to Make the Most of It:

1. After washing, press "dry" and start at medium temperature and speed.

2. Increase the speed if you're in a hurry; lower the temperature if your skin is sensitive.

3. Let it finish: do not interrupt the cycle. It is calibrated to dry in ≤30 seconds without extra steps or restarts.

Common Mistakes to Avoid:

• Starting at maximum: too much heat at once doesn't dry better; find your sweet spot and let the airflow do the work.

• Cutting short: if you're 90% dry, add 10 seconds; it's still faster than using paper.

• Confusing comfort with effectiveness: the real leap is in the airflow (29 m/s); adjust temperature for comfort, not for “more drying.”

Drying: A Key Factor for a Good Choice.

When choosing a model, drying is crucial. It is the feature that transforms water hygiene into a real routine—without relying on paper. A good drying system like ELORA's “super-typhoon” drying (fast, adjustable, and consistent) makes a difference compared to slow drying systems that force you to “finish up” with paper. If you have to prioritize, prioritize drying well and quickly: it is the point that defines the experience, daily comfort, and the feeling of complete cleanliness.

Water Flush: Powerful, Quiet, and Truly Water-Saving

How it works:

Your ELORA toilet “thinks” for you: it detects whether a half flush or full flush is needed and adjusts the water automatically. A full flush uses 5 liters, which represents a 50–80% saving compared to many conventional toilets. Result: the bowl remains impeccable using only what is necessary.

Noticeable Silence:

The dual-flush system is designed to mitigate noise: we go from a typical 80 dB of a conventional toilet to 59 dB in ELORA. In practice, this means a much quieter bathroom: ideal at night or in homes with children.

Power Without Splashes:

A dual pump impeller pressurizes the water simultaneously, achieving a powerful and stable flush. Additionally, the flow is directed in two directions, improving 360° drainage and reducing residue on the first try.

Why it benefits you:

• Automatic water saving without thinking about buttons.

• Less noise, more comfort (and no waking anyone up).

• Effective waste removal thanks to controlled pressure and dual-direction water flow.

• Noticeable quality in daily life: clean, fast, and efficient.

UV Lamp: Automatic WC Disinfection

What it is and how it works:

The toilet integrates a UV lamp that activates only when the lid is closed to perform a disinfection cycle in a “closed” chamber. During this cycle, the nozzle and the bowl are exposed to UV light, and the bacterial load is reduced on visible surfaces. As soon as you open the lid, the bar retracts and the system stops for safety.

The interesting (and honest) things you should know:

• Acts precisely where it matters: the spray impact zone and the nozzle, which is the most critical part of the system.

• Automatic and constant: works between uses, helping the toilet be more hygienic for the next user.

• Improved feeling of cleanliness: by hindering bacterial proliferation, the bowl stays fresher and daily cleaning becomes easier.

• Critical perspective (what it doesn't do on its own):

• UV does not replace mechanical cleaning: if there is visible dirt, it must first be removed; light does not “penetrate” residue.

• Efficacy is line of sight: corners or internal shadows receive less light; that's why the retractable nozzle and direct exposure are key.

• It's not a “perfume”: it aids microbiological hygiene, not masking odors.

Infrared heat therapy

What it does for you:

Infrared emission provides deep, uniform heat that stimulates circulation, helps relieve minor swelling, and promotes the skin's natural recovery processes. All while you enjoy a relaxing sensation that enhances your physical well-being and helps you release tension.

Benefits you will notice:

• Improved local circulation → feeling of lightness and comfort.

• Reduced swelling → heat promotes drainage and relaxation in the area.

• Healing support → more favorable conditions for skin recovery.

• Immediate relaxation → your break becomes truly restorative.

Deodorization and aromatherapy: clean air, refined ambiance

How it works:

Upon detecting your presence, the automatic deodorization system activates a purification flow that captures and neutralizes odors in seconds, keeping the bathroom clean and pleasant from the very first moment.
Additionally, AURA incorporates programmed aromatherapy: every hour, it releases a subtle fragrance that envelops the space without overpowering, creating a relaxing atmosphere consistent with a high-end bathroom.

What you gain:

• Odors under control: active purification while you use the toilet; the environment is 'ready' for the next person.

• Sensory well-being: a discreet aromatic note that transforms routine into a pleasant moment.

• Zero effort: everything is automatic; you simply enjoy the result.

Control methods: remote, dial, and voice

There are three ways to control your smart toilet depending on the moment: a remote control in Spanish (with profiles), a side dial always at hand, and voice commands for completely hands-free use.

Remote control (in Spanish, with 2 user profiles):

What it is: Wireless control with icons and text in Spanish.
Why you'll love it:

• Saved profiles (2 users): pressure, temperature, and drying exactly as you like them, with a single touch.

• Precise and convenient: ideal for fine adjustments without moving.

• Wall-mounted: place it at hand height for intuitive use.

Side dial (direct control):

What it is: Physical selector integrated into the seat.
Why you'll love it:

• Always available: no reliance on batteries or searching for the remote.

• Ultra-fast: turn, press, and done (perfect for Wash, Dry, and Stop).

• Intuitive: ideal for guests; zero learning curve.

Voice commands (hands-free use):

What it is: Activate basic functions with your voice (e.g., “start wash,” “activate drying”).
Why you'll love it:

• Hygiene and accessibility: hands occupied or reduced mobility, problem solved.

• Natural flow: you can chain actions without touching anything (wash → dry).

• Modern comfort: a truly premium experience.

Your bathroom, your way

If you've read this far, you've probably already guessed: a smart toilet isn't about “buttons,” it's about how you want to feel every day. Some are captivated by touchless opening; others discover that water cleansing changes their lives; and for many, the “click” comes with the super-typhoon drying: fast, consistent, and paper-free. We don't all seek the same thing, which is why it's crucial to choose the functions that fit you and your routine.

The AURA model from ELORA SMART brings together everything we've seen: personalized water cleansing, drying in <30 s, a self-regulating heated seat, powerful and silent flushing, foam shield, UV, infrared, deodorization + aromatherapy, and control via remote, dial, or voice. It's not just a list; it's a system designed for your comfort: less friction, less noise, fewer doubts… and a bathroom that finally works for you.

Imagine this small ritual: you enter, the lid welcomes you, you sit down, and everything flows—warm water, fast drying, clean air—without a thought. You get up with that feeling of truly clean and continue your day. That is AURA.

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