Oxygen-enriched nanobubble hydrotherapy.

Relaxing warm-water immersion in oxygen-rich, ozone-treated nanobubble water, for hydrotherapy immersion pools, therapy pools and spa installations.

70–200 nm
typical nanobubble size, smaller than one micrometer
20–30 min
recommended immersion session
30–36 °C
hydrotherapy water temperature range (86–97 °F)
The system

Oxygen to ozone to nanobubbles.

The NBOT Oxygen–Ozone Nanobubble Hydrotherapy System is an oxygen-to-ozone nanobubble generation and delivery system for pools and spas.

01Concentrates oxygen from ambient air and converts a controlled portion of it to ozone.
02Infuses the oxygen–ozone gas into the pool water as nanobubbles, producing oxygen-enriched water with a stable, long-lasting nanobubble population.
03Uses the oxidizing power of ozone to treat the water itself, reducing microbial load, organic matter and odor in the water and producing exceptional clarity.
04Delivers that oxygen-rich nanobubble water to bathers for relaxing warm-water immersion sessions.

Why nanobubbles

70–200 NANOMETERS

Conventional aeration produces millimeter-scale bubbles that rise to the surface and burst within seconds, so most of the gas is lost. Nanobubbles have near-neutral buoyancy and a negatively charged surface that keeps them from merging, so they remain suspended in the water for extended periods.

01 — OXYGEN

Oxygen-enriched water

Dissolved oxygen well above what surface aeration can achieve, sustained throughout the pool volume.

02 — OZONE

Efficient ozone use

Very high gas–liquid surface area means ozone transfers into the water efficiently and does its oxidation work in the water rather than escaping to the air.

03 — FEEL

Distinctive water feel

Bathers describe nanobubble water as soft and silky, with exceptional clarity.

How it works

From pool to pool, in eight stages.

Oxygen is the carrier gas and the benefit bathers experience: the pool water is oxygen-enriched. Ozone oxidizes organic matter and reduces microbial load in the water, then reverts to oxygen, leaving no chemical by-product odor in the water.

01Pool suction and pre-filterRemoves hair, lint and debris that would damage the pump or nanobubble generator.
02System pumpPressurizes the water to the nanobubble generator operating pressure.
03Oxygen concentratorProduces ≥90% oxygen from ambient air by pressure swing adsorption (PSA).
04Ozone generatorConverts a controlled fraction of the oxygen to ozone by corona discharge.
05NBOT nanobubble generatorShears the oxygen–ozone gas into nanobubbles in the pressurized stream.
06Contact / degas vesselGives ozone time to oxidize contaminants in the water; separates undissolved gas.
07Ozone destruct unitCatalytically converts vented ozone back to oxygen before discharge.
08Pool returnReturns oxygen-rich, ozone-treated nanobubble water to the pool.
Designed around the bather

Ozone does its work before the water reaches you.

Ozone gas is never delivered to bathers. The system is designed so that ozone treats the water in the contact stage, and vented ozone is converted back to oxygen.

AT THE BATHER ZONE
  • Dissolved ozone at the pool return: non-detectable target, 0.05 mg/L maximum
  • Airborne ozone at the water surface: below 0.05 ppm
  • Water temperature 30–36 °C (86–97 °F), never above 40 °C (104 °F)
AUTOMATIC INTERLOCKS
  • Ozone generator shuts down on high dissolved or ambient ozone
  • Shuts down on loss of water flow or low oxygen purity
  • Ambient ozone monitor, emergency stops and data logging

System components

U.S. PATENT NO. 11,247,923
OZONE GENERATOR
300 g/h ozone output
Oxygen-fed, corona discharge
OXYGEN CONCENTRATOR
≥90% O₂ purity
Pressure swing adsorption (PSA)
SYSTEM PUMP
15 HP (11 kW)
Stainless steel wetted parts
NANOBUBBLE GENERATOR
NBOT hydrodynamic
Proprietary, stainless steel
OZONE DESTRUCT UNIT
Catalytic
Sized for full generator output
INSTRUMENTATION
Dissolved ozone, ORP, pH, temperature, dissolved oxygen
Dissolved ozone sensor at pool return
AMBIENT OZONE MONITOR
0–1 ppm range
Interlocked to ozone generator shutdown
CONTROL PANEL
PLC with HMI
Session timer, alarms, interlocks, data logging
BEFORE YOU ENTER
  • Consult your physician before use if you are pregnant, have a heart or respiratory condition, high or low blood pressure, or any health concern.
  • Do not use under the influence of alcohol or medication that causes drowsiness.
  • Limit sessions to 30 minutes. Exit immediately if you feel dizzy, overheated or unwell.
  • Children must be supervised at all times.
WELLNESS USE ONLY

The system is a general wellness and water-treatment product. It is not a medical device and is not intended to diagnose, treat, cure, mitigate or prevent any disease or medical condition, including any skin condition.

Commercial and public pools remain subject to state and local health codes. Ozone is a supplemental system and does not replace the residual sanitizer the code requires.

Get In Touch Today

Bring nanobubble hydrotherapy to your facility.

Water that feels soft, silky and refreshing, with exceptional clarity. Talk to our team about your pool, therapy pool or spa installation.