Plasma Activated Water Technology

Clean Water.
Zero Chemicals.
Forever.

Built into the fixtures you already use.

Caesar PAW transforms ordinary tap water into reactive-species-rich treated water using only air and electricity. No chemicals. No cartridges. No refills. Ever.

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Caesar A510 Plasma Activated Water Generator

Case Study

Proven at scale. 2 million riders per day.

Taipei Metro x Caesar — Plasma-Activated Smart Restroom

Full-suite smart restroom installation at Taipei Main Station, Taiwan's busiest transit hub.

Taipei Metro × Caesar Plasma-Activated Smart Restroom at Taipei Main Station

What's installed

  • Urinal ozone modules (external add-on) — ozone-treated water on every flush
  • Sensor faucets with plasma module — plasma-activated water at every handwash
  • Smart occupancy display — real-time room availability at entrance

Why it matters

  • Live, operating reference — not a prototype or a lab test
  • Major public authority client (Taipei Rapid Transit Corporation)
  • High-traffic stress test — millions of uses per month
  • Replicable model for airports, hospitals, stadiums, hotels worldwide
Second Location · August 2024

Zhongshan Art Gallery Station

Caesar's plasma-activated smart restroom expanded to a second Taipei Metro location — the Zhongshan Art Gallery corridor. Featuring ozone-treated urinals, touchless plasma faucets, and SIAA-certified fittings throughout.

Taipei Metro × Caesar plasma-activated smart restroom entrance at Zhongshan Art Gallery Station
Three-station sensor faucet row with ozone-treated water at Zhongshan Station
Caesar urinal with ozone-treated flush water — SGS-tested performance
Caesar sensor faucet with O₃-treated plasma-activated water — SGS-tested

The Problem

Every flush. Every wash. Chemicals you don't need.

Chemical Dispensers

  • Recurring chemical refill costs — ongoing, per restroom
  • Leaves chemical residue on surfaces
  • Constant maintenance and refilling
  • Creates toxic wastewater

Caesar PAW

  • Uses plasma physics with just tap water
  • One install. Five-year electrode life
  • Zero consumables. Zero chemical waste
  • Self-neutralizing — safe for all wastewater systems

How It Works

Science at the point of use.

1

Water enters

Ordinary tap water flows into the module — no pre-treatment or filtration required.

2

Plasma activates

A Dielectric Barrier Discharge (DBD) electrode generates Reactive Oxygen and Nitrogen Species (RONS) — dissolved directly into the water stream.

3

Clean water flows

Plasma Activated Water exits the fixture — antimicrobial, deodorizing, and self-neutralizing. Within minutes, it reverts to ordinary water. No residue.

What makes Caesar PAW different

Most competitors generate ozone only. Caesar's Gen 2 system produces both ROS and RNS — a broader spectrum of reactive species that provides 24h continuous antimicrobial action (SGS-verified) on treated surfaces.

SGS-Verified Performance
0%

Bacterial reduction in 30s

0%

Enterovirus 71 inhibition (SGS)

0 ppm

Ambient ozone (below WHO limits)

0hr

Residual antimicrobial activity

Solutions

Built for the spaces that need it most.

ProductApplicationInstallation
Urinal Add-On Module Retrofits onto any existing urinal — eliminates odor at the source, breaks down biofilm with every flush Bolt-on retrofit
Urinal Built-In Module Factory-integrated into new Caesar urinals Standard urinal install
Sensor Faucet Add-On Retrofits onto existing sensor faucets — every handwash delivers plasma-activated water Under-counter mount
Full Restroom Retrofit Complete package: 10 urinals + 6 faucets per restroom Turn-key restroom retrofit

Product lineup

Featured models

A510 Plasma Activated Water Generator
A510 detail
A510 電漿活化水產生器

Plasma Activated Water Generator

GEN2 countertop plasma-activated water generator — hand-wave activation, treated water on demand.

Dimensions
W130 × D45 × H130 mm
Weight
400 g ± 10 g
Power input
AC 100–240 V, 50/60 Hz
Max power
10.8 W (0.945 W standby)
Sensor
20 mm hand-wave, ≤0.5 s
Water
1.5–5 kgf/cm², 5–40 °C
A644OZ Built-in Ozone Urinal Sensor Flusher
A644OZ 內建臭氧小便斗感應沖水器

Built-in Ozone Urinal Sensor Flusher

Taipei Metro demo model — sensor-activated urinal flush with built-in ozone. Universal 110/220 V.

Power input
AC 110 V / 220 V
Weight
3.2 kg
Max ozone output
100 mg/hr
Activation
Sensor-activated flush
A648OZ Built-in Ozone Urinal Sensor Flusher
A648OZ 內建臭氧小便斗感應沖水器

Built-in Ozone Urinal Sensor Flusher

Built-in ozone urinal flusher — sensor-activated, higher-capacity ozone output. Universal 110/220 V.

Power input
AC 110 V / 220 V
Weight
3.5 kg
Max ozone output
150 mg/hr
Activation
Sensor-activated flush
A610OZ External Ozone Unit for Urinal
A610OZ 外掛式臭氧機小便斗用

External Ozone Unit for Urinal

Retrofits onto existing urinals — adds ozone-activated water without replacing the fixture.

Dimensions
130 × 56 × 130 mm
Weight
415 g
Power input
AC 100–240 V, 50/60 Hz
Power output
DC 12 V, 1 A
Max ozone output
100 mg/hr
Operating temp
5–40 °C
A600OZ External Ozone Unit for Sensor Faucet
A600OZ 外掛式臭氧機感應龍頭用

External Ozone Unit for Sensor Faucet

Under-counter retrofit for existing sensor faucets — ozone-treated water at every handwash.

Dimensions
116 × 56 × 130 mm
Weight
110 g ± 5%
Power input
AC 100–240 V, 50/60 Hz
Power output
DC 12 V, 1 A
Max ozone output
100 mg/hr
Operating temp
5–40 °C

Total Cost of Ownership

The math is simple.

Five-year comparison per restroom fixture.

Recommended

Caesar PAW

Hardware Low
Consumables (5 yr) None
Maintenance (5 yr) Minimal
5-Year Total Lowest

Chemical Dispenser

Hardware Low
Consumables (5 yr) Ongoing
Maintenance (5 yr) Regular
5-Year Total Highest

Aqueous Ozone System

Hardware High
Consumables (5 yr) Regular
Maintenance (5 yr) Periodic
5-Year Total Moderate

Visual comparison (5-year total cost)

Caesar PAW Lowest
Chemical Dispenser Highest
Aqueous Ozone System Moderate
Lowest total cost of ownership — no chemical consumables, minimal maintenance

Deployments across transit systems and hospitality demonstrate substantial lifetime savings.

Technical Specifications

Engineered for reliability.

Technology
Gen 2 Dielectric Barrier Discharge (DBD) — dual ROS + RNS modules
Power (max)
10.8 W
Power (standby)
0.945 W
Power input
Universal 110-240V adapter (market-specific plug)
Water temperature
5-40°C (cold water only)
PAW active window
~20 minutes peak potency, then self-neutralizes
Auto shut-off
10 minutes continuous use
Electrode lifespan
5+ years under normal use
Consumables
None — air + electricity only
Ambient ozone
0.026 ppm (SGS-verified) — below OSHA (0.1) and WHO (0.05) limits
Indicator
Blue LED — signals plasma activation
Certifications
SGS-tested efficacy · BSMI (Taiwan) · Additional market certifications in progress

Why Caesar

Trusted heritage. Breakthrough technology.

45+ years of manufacturing

Caesar (Sanitar Co., Ltd.) has been Taiwan's leading sanitary ware manufacturer since 1980. Supplier to Taipei Metro, Taoyuan International Airport, and national hospital networks.

Proprietary plasma technology

Protected by multiple patents in Taiwan. Gen 2 dual-module system (ROS + RNS) is a genuine technical differentiator — not commodity ozone generation.

Available globally through regional partners

EU trademark registered (EUTM 017978519). International partner development coordinated through ETP Life Sciences (Dubai, UAE).

Red Dot Award · Product Design 2025

Red Dot Winner 2025

Plasma Antibacterial Kitchen Faucet  ·  Kitchen Taps & Sinks

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