How to Measure Output of Commercial Ozone Generators

Test Performance of your Commercial Ozone Generator

Commercial ozone generators are sold all over the world from many manufacturers past and present. These ozone generators usually produce ozone from ambient air that is blown across a corona or UV device that produced ozone from the ambient air blown through the generator.

Ozone output is normally measured in mg/hr. To calculate mg/hr of ozone produced we must know the mass of ozone and the volume of air. These calculations along with the equipment and methodology required are listed below.

It is important to understand and realize that the quality of ambient air, temperature of the air, relative humidity of the air, and cleanliness of the UV light or Corona discharge device are very critical. As these parameters may change over time ensure you quantify and qualify each parameter before beginning this test. Also understand that manufactures of these ozone generators may not ever test ozone production, or may test production with a wide variety of ambient temperatures, relative humidities, and other factors.


Equipment required:

 An ozone meter will be required to measure ozone concentration in the air leaving the ozone generator. This must have a sample pump to draw a sample of gas from your flow tube into the monitoring device. This will provide the most accurate ozone measurements without disrupting your air flow. Ideally a UV based ozone analzyer will be used to measure ozone levels due the greater precision and accuracy available. However, there are some ozone meters available using electrochemical or HMOS sensor cells that can pull a gas sample into the sensor and provide reasonable accuracy. For the best accuracy in ozone production choose the most accurate ozone meter possible.

UV-100 Ozone Analyzer for sale or rent
UV-100 Ozone Analyzer

The specific ozone analyzer we recommend to use for this testing is the UV-100 Ozone Analyzer.  This is available for sale, or for rent for shorter term needs.


A Monometeris used to measure airflow by measuring the velocity of airflow in your flow tube. A digital monometer can be obtained that will measure airflow in a variety of units of measure. For the best accuracy in ozone production choose the most accurate monometer possible.


A Flow Tube must be constructed to measure airflow from the ozone generator. This tube can be constructed of PVC or other plastic materials. The airflow from the ozone generator must have as much turbulence removed as possible to accurately measure air speed. This tube must be sealed directly to the outlet of the ozone generator and must not restrict air flow in any way. Actual air flow of the ozone generator in normal operation must be obtained and measured accurately.

measure output of ozone generator
The illustration above provides an example of how to measure output of ozone from a commercial ozone generator using instructions provided here.


Units of measure:

For more information on common ozone related units of measure click HERE.

mg/hr = grams per hour – commonly used to measure output of commercial ozone generator. 1 mg/hr = 1,000 mg/hr ozone

ppm = parts per million – commonly used to measure ozone concentrations in ambient air. Can be measured by weight or by volume, most commonly is measured by volume, for the purpose of this article we are using only ppm by volume.

m3/min = cubic meters per minute = measurement of air flow from ozone generator

m/s = meters per second= measurement of air speed, monometer will measure air speed in m/s



Ozone production calculation:

mg/hr = (m3/min x 60) x (ppm x 2.14)


  • 100 mm x 100 mm square flow tube (100 mm is about 4”)
  • 10 ppm ozone concentration
  • 5 m/s air speed in flow tube (5 m/s = 16.4 ft/s)

100 mm = 0.1 meters

0.1 x 0.1 = 0.01 m2

0.01 m2 x 5 = .05 m3/second

.05 x 60 = 3 m3/min

(3 m3/min x 60) x (10 x 2.14) = 3,852 mg/hr ozone production

Additional information:

How ozone is produced

How corona discharge ozone generator work

How UV lamp ozone generators work

White paper: Validation of Gas Flow Measurement Druing Ozone Generator Performance Testing

White Paper: Guideline for Measurement of Ozone Concentration in the Process Gas From an Ozone Generator

Emporia, Kansas is upgrading ozone equipment

Emporia’s Public Works Department is about to launch a major improvement project at the Water Treatment Plant. Emporia, Kansas is upgrading ozone equipment as part of the systems ozone filtration system.

Listen to audio HERE

Director Frank Abart, KVOE’s Newsmaker II guest Monday, said equipment is starting to gather at the plant, 24th and Industrial, as workers prepare to replace the current ozone filtration system. Abart says ozone is the primary disinfectant for the water supply, but this is a project whose time has come. 

Preliminary work begins next week, with the pouring of concrete pads and addition of pipes. After that, one of the current two filtration generators will be taken offline for replacement. Once that work is finished, the other filtration system will then go down to be replaced.

So-called “substantial completion” is slated for March or April. Close to a month’s worth of testing is also part of the process before everything is officially ready. Cost is around $3 million. Abart anticipates a 15- to 20-percent reduction just in electrical costs once the upgrades are finished.

The goal, according to Abart, is to make sure residents in Emporia — and further downstream who enjoy the city’s water — don’t notice any differences in taste as the process continues. The city typically takes water samples for state, national and now international taste tests in January. Emporia has consistently won the state’s water taste tests and now fares very well nationally and internationally even with the old filtration equipment.

Ozone removes micropolluants from wastewater

Wastewater treatment for micropollutants is becoming more popular and important worldwide. As the concerns of pharmaceuticals in water comes to the forefront the desire for cleaner, safer water is understood. This leads to the implementation of systems to remove micropollutants from wastewater during the treatment process. Ozone is one technology that has proven effective to remove micropollutants and pharmaceuticals from wastewater. Article below gives some great information on another new plant upgrading to ozone use.

Learn more about ozone use for wastewater and micorpollutnats HERE

Full news article HERE

Swiss wastewater plant chooses Xylem’s ozone tech to remove micropollutants

SCHAFFHAUSEN, Switzerland – Xylem (NYSE: XYL) has been awarded a contract to provide advanced treatment technology to the Werdhölzli wastewater treatment plant in Zurich, the largest wastewater treatment facility in Switzerland.

The European Union (EU) has published a list of prioritised substances that pose a threat to ground and surface water sources. To adhere to the environmental standards set by the EU, the member countries have to regularly monitor the occurrence of the listed substances.

In Switzerland, a 20-year process to upgrade major wastewater treatment plants is underway to tackle such pollutants, which currently remain in treated wastewater and are released into surrounding lakes and rivers.

As part of this agenda, new legislation came into effect on 1 January 2016 requiring wastewater treatment plants to implement an additional treatment process, specifically for the removal of micropollutants.

Xylem said its ozone technology will enable the plant to meet new Swiss regulations regarding the protection of water bodies and specifically, the removal of micropollutants.

Eight Wedeco SMOevo ozone systems will be supplied to the Werdhoelzli wastewater treatment plant as part of a 50 million CHF (51.17 million USD) upgrade project.

Once operational, the plant will be able to produce 153 kilograms of ozone per hour (kgO3/h)  to treat a  flow of 6,500 litres per second (l/s), making it the largest ozone plant for the removal of micropollutants in the world.

Growing concern about micropollutants – contaminants that are released from everyday products such as industrial chemicals, pharmaceuticals and personal care products (PPCPs), pesticides, and hormones, and cannot be removed with conventional wastewater treatment technologies – is leading many countries to consider more rigorous treatment solutions.

Peter Wiederkehr, chief operating officer (COO) Entsorgung + Recycling Zürich, said: “Wastewater treatment plants serving a population of 5,000 or more must be equipped now with a new treatment stage which ensures that up to 80% of pre-selected micropollutants are removed. Extensive research has confirmed ozone as a preferred technology for this stage. Xylem’s Wedeco SMOevo ozone systems will enable us to meet the new treatment regulations with a reliable, environmentally-friendly and cost-effective solution.”

Florian Milz, key account manager with Xylem added, “The elimination of micropollutants from wastewater is a challenge which more and more facilities must address. While conventional treatment processes do not remove them completely, oxidation with ozone is proving to be one of the most efficient methods for reducing these contaminants. Pollutants, colored substances, odors and microorganisms are directly destroyed by oxidation, without creating harmful chlorinated by-products or significant residues.”

Construction on the Werdhölzli wastewater treatment plant upgrade began in 2016 and the plant is expected to be operational by 2018.

Preventative Maintenance Services

Oxidation technologies offers preventative maintenance services for almost all industrial and commercial ozone equipment.  Our staff can go on-site check equipment, perform maintenance and ensure reliable long term maintenance of your equipment.

All mechanical equipment requires maintenance of some sort.  Why not have the ozone experts check your system at least once a year?

Ozone System Preventative Maintenance Services:

  • Even the best systems require maintenance
  • Poorly maintained ozone systems produce poor results
  • Ozone system maintenance can be simple if it is performed regularly
  • Feed gas systems are commonly neglected
  • Ozone leak sensors require calibration
  • Some corona cells require cleaning
  • Check valve and water traps must be in working condition
  • If neglected, repairs will cost far more than routine maintenance

Ozone Generator/System Service:

  • We can perorm on-site service of your integrated system as needed or set-up a contract
  • We offer monthly, quarterly, bi-annually, and annual service contracts
  • Proper service and maintenance is required for long lasting equipment
  • Many times preventative maintenance will cost less than costly repairs

Click HERE to be directed to our ozone system repair/service webpage.

For details on your ozone generator or ozone system components please Contact Us, we would be glad to help you design a PM plan for your equipment.


List of common ozone generator brands we have offered maintenance service for:

  • Ozonia
  • Wedeco
  • Plasma Technics (PTI)
  • Azcozon
  • Absolute Ozone
  • Hess Machine
  • Pacific Ozone
  • Clearwater Tech
  • Del Ozone
  • Welsbach
  • Polymetric
  • Ozotech

 List of supporting ozone equipment we commonly offer maintenance service for:

  • Oxygen Concentrators
    • OGSI
    • Air Sep
    • Sequal
  • Air Dryers
    • PureGas
    • Ingersoll Rand
    • Azco
  • Air Compressors
    • Ingersoll Rand
    • Kaiser
    • Gast
    • Thomas
  • Ozone Monitor

    • Eco-Sensors
    • Analytical Technologies, Inc. (ATI)
    • Aeroqual
    • Teledyne API
    • 2B Tech
    • BMT
    • IN-USA
  • Accessories
    • Rebuild injection pump
    • Rebuild/replace check valves
    • Replace venturi
    • Check for proper air vent operation


  • A little humor:

    Top 10 reasons ozone systems are not maintained

    1. We can’t find/lost the manual
    2. The manufacturer didn’t send the manual
    3. Ozone? I heard that stuff was dangerous!
    4. I don’t go near anything more than 500 volts
    5. I don’t think ozone really does anything anyway, after all our water is fine isn’t it?
    6. It started leaking a few months ago, we couldn’t find the leak, so we just shut it off
    7. The manual didn’t say anything about maintenance, did it?
    8. I don’t even know why we have that thing, no one asked me if it was a good idea!
    9. What does ozone do anyway?
    10. The last time I worked on it I inhaled way too much ozone, I’m not doing that again!

    Summary: don’t let this be you!

Ozone sanitizes athletic gear

[vc_row][vc_column][vc_column_text]While it is well known and common practice to use ozone to remove odor from athletic gear, and even hunting gear, there is another benefit to the use of ozone.

Ozone can also kill dangerous bacteria like MRSA and other so called “Super Bugs”.  The use of ozone to inactive bacteria commonly is commonly used in the food processing and cooling tower industries.  This same action is available to keep your athletic gear safe.

This practical use of ozone is now mobile, brought to you by an opportunity through Bro-Zone.  This mobile truck uses a turnkey integrated ozone system from Oxidation Technologies that  fully automates the ozone cycle and provides consistent ozone levels inside the truck while keeping the personal safe at all times.

In this mobile truck ozone sanitizes athletic gear to remove harmful bacteria, including MRSA.  All while reducing odors in your gear!

BroZone mobile ozone disinfection truck

A completely automated ozone system is used on this truck to ensure the job is done quickly, safely, and consistently.

ozone generator in truck
Automated Ozone System for mobile ozone disinfection

Athletic gear can easily be placed into this truck with air blowing throughout the gear to ensure adequate contact with all parts of the gear.  This is imperative as the ozone gas carries the ozone molecule that must touch the harmful bacteria.  While other companies may place gear on top of each-other, this truck allows the gear to be placed in proper orientation to ensure every surface is exposed to high levels of ozone gas.

Hocky gear sanitized by ozone
Inside ozone sanitation truck

From the BroZone website:

We are a mobile sports equipment ozone sanitizing station

We get it. Life can be busy and to-do lists seem to go on and on. That’s why we come to you. By working with teams, organizations and event organizers, we can make your life easier by being where you already are so you don’t have to make an extra trip or worse, put off sanitizing.

Sports gear begins to stink because bacteria has embedded itself inside the foam and padding which is almost impossible to clean with traditional methods. Most people think to wash the equipment with soap and water, expecting that will do the trick. However since that’s a chore to do doubled with long dry times, most just put it off. Some people will simply use a surface disinfectant, but that doesn’t work because it’s molecules are too big and aren’t able to penetrate the pores of the foam and padding.

Ozone gas has the ability to neutralize a broad spectrum of bacteria, viruses and molds. The ozone molecule, because of its smaller size, is able to penetrate deep into the equipment’s fibers, foam and padding, makes it the perfect solution to sanitize gear.

You don’t wear the same clothes to the gym every day for a full year without sanitizing them. Why would you do the same to your child’s sports equipment? By frequently sanitizing, you’re protecting your child’s health and well being.

We’ll have you in and out!

We have a calendar here on the site so you can always see where we’ll be. Simply meet us at our truck and hang your gear on one of our equipment racks. It will be loaded onto a motorized equipment conveyor (similar to dry cleaning garment conveyor). Once loaded, the truck is closed and sealed and the treatment process begins. The sanitation process is completed anywhere between 15-30 minutes, depending on the load size. Speaking of load size, we’re the only mobile sanitation operation that can handle large scale sanitizing. Most companies that aren’t even mobile can only handle 2-3 sets of gear at once. We can accommodate 15 sets of gear at once—which means less time waiting around.

For more information about ozone and the affects on bacteria click here.[/vc_column_text][/vc_column][/vc_row]

Ozone System Service and Repair

[vc_row][vc_column][vc_column_text]Oxidation Technologies can repair, service, and maintain most any Ozone Generator and offers the same services for the ancillary ozone equipment. Our services include, but are not limited to:

On-Site System service and repair

  • Oxidation Tech provides on-site service, preventative maintenance, and repairs of Ozone Generators and equipment.  Oxidation Tech has the experience, tools, and parts to keep your Ozone Generator and associated equipment running and operational for the long term with minimal down-time.

Ozone System preventative maintenance

  • Maintenance is an important part of any mechanical system.  Ozone systems are no different.  Oxidation Tech has the experience and manpower to assist you with your ozone system maintenance.  Whether you desire maintenance parts and advice, or a comprehensive maintenance contract we can satisfy your needs.

In-house repair of Industrial Ozone Generators and associated equipment

  • Oxidation Tech can repair nearly all Industrial Ozone Generators back to original specifications. Many Ozone Generators have been built/integrated by ozone companies that either no longer exist, or offer no repair services. In these cases, we are able to help. We will repair many obsolete Ozone Generators from manufactures that do and do not exist today. Of course, we would also be glad to repair any current models of Ozone Generator. Our experience and knowledge allows us to repair your Ozone Generator in a timely manner at a very competitive cost.
  • Many Ozone Generators today use the same internal components provided by only a handful of manufacturers. There are relatively few Ozone Generators that are manufactured from completely exclusive components. Therefore, repairs of many brands of Ozone Generators use the same internal components. Also, there are now aftermarket parts available to replace the commonly used components in many Ozone Generators. So, before you give up on that older Ozone Generator, or are told your Ozone Generator is obsolete, give us a call!
  • Our in-house repair labor rates for Industrial Ozone Generators = $75/hour.
  • We do not charge a fee for diagnostics of your Ozone Generator. We will diagnose the repair and quote a repair price for your Ozone Generator at no cost. If you decide not to repair the Ozone Generator we will only charge for return shipping of your equipment.

In-house repair of Commercial (air blower style) Ozone Generators

  • Ozone is very commonly used for air treatment in many applications. Many manufactures, large and small, have produced Ozone Generators for air treatment that blow ambient air over a UV lamp, or corona discharge element to produce ozone from the ambient air in a room. We refer to these type of units as commercial, or air blower style Ozone Generators.
  • We stock many aftermarket and original OEM repair parts for these Commercial Ozone Generators. The components used are frequently interchangeable between units; therefore repair costs are frequently low.
  • If you have a Commercial Ozone Generator in need of repair, give us a call. We would be glad to diagnose and quote a repair cost of your Ozone Generator.
  • Our in-house repair labor rates for Commercial Ozone Generators = $65/hour.
  • We do not charge a fee for diagnostics of your Ozone Generator. We will diagnose the repair and quote a repair price of your Ozone Generator at no cost. If you decide not to repair the Ozone Generator we will only charge for return shipping.

Ozone Monitor repair and calibration services

  • Ozone monitors is our specialty. We offer repair, calibration, and even rental of Ozone Monitors for most every application.
  • Many Ozone Monitors can be supplied with a replaceable pre-calibrated sensor chip. This means calibration is as simple as ordering a replacement sensor, and swapping it out on-site yourself. This can normally be done in less than 10 minutes.
  • Ozone Monitors that require calibration can be shipped to us for calibration. We offer calibration for most every Ozone Monitor and UV analyzer. Our rates are below:
  • Ozone Monitor calibration = $150
  • UV Analyzer calibration = $300


List of common industrial ozone generator brands we have repaired:

  • Ozonia
  • Wedeco
  • Plasma Technics (PTI)
  • Azcozon
  • Absolute Ozone
  • Hess Machine
  • Pacific Ozone
  • Clearwater Tech
  • Del Ozone
  • Welsbach
  • Polymetric
  • Ozotech
  • Enaly

Your ozone generator not on the list? Give us a call, it is likely it uses parts manufactured by one of the companies on the list above.


Pacific ozone generator repair

Pacific Ozone Generator repaired in-house.  This is a common brand-name ozone generator.

PTI Quad Block o3 generator repair

PTI Quad Block Ozone Generator in custom ozone cabinet, repaired on-site.

Semozone O3 gen cell repair

Semozone Ozone Gen corona cell uses many ceramic dielectics.  These ozone generators are used in the semiconductor industry.

Antique Vitozone Ozone Generator repair

Antique Vitozone Ozone Generator, one of the oldest commercial ozone generators produced!

PTI 50 g plasma block repair

OEM PTI 50 g plasma block, removed from generator and repaired as a unit.

VMUS-4 Azco ozone generator repair

Wall-mount Azco VMUS-4 ozone generator shipped to us for repair.

American Ozone generator repaired

On-ste repair of obsolete ozone generator produced by American Ozone.

American Ozone systems, ozone generator

OOn-ste repair of obsolete ozone generator produced by American Ozone.

On-site repair of ozone system

On-site repair and service of ozone system using Ozonia ozone generator and Air-Sep Oxygen Concentrator.

Custom ozone generator with PTI electronics and ozonia cells

Repair of custom ozone generator using PTI electronics and Ozonia ozone generator cells.

Sonozaire ozone generator repair

Repair of custom ozone generator using PTI electronics and Ozonia ozone generator cells.

Ozone remediation trailer maintenance

Ozone remediation trailer maintenance.  On-site routine maintenance.

ActiveO Ozone Generator repair

Active-O Commercial ozone generator during repair.

Ozone lab ozone generator repair

Ozone Lab ozone generator repair- small ozone generator used in dental and medical applications.

Azco ozone generator repair

Ozone Lab ozone generator repair- small ozone generator used in dental and medical applications.

Eco-Safe ozone generator in custom configuration

This Eco-Safe ozone generator was packaged in a box with an off-brad oxygen concentrator in a much too small of a box.

Dirty Azco ozone generator for repair

This Azco ozone generator was filthy, click image to enlarge.  This is not the proper way to treat any ozone generator.

On-site service of Hess Ozone Generator

This Azco ozone generator was filthy, click image to enlarge.  This is not the proper way to treat any ozone generator.

Invcare oxygen generator repair

Repair of Invacare oxygen generator.  Small residential style oxygen generator.  Yes, we’ll fix that too.

M454 Ozone analyzer calibration

Repair of Invacare oxygen generator.  Small residential style oxygen generator.  Yes, we’ll fix that too.

BMT 964 Ozone analyzer calibration

Repair of Invacare oxygen generator.  Small residential style oxygen generator.  Yes, we’ll fix that too.



Ozone in dentistry is catching on!

[vc_row][vc_column][vc_column_text]The use of ozone in dentistry is catching on as the benefits of ozone are realized by more people.  More and more dental offices across the USA are implementing ozone.  See below for great article on another new ozone dental office.


Dr. Joseph Goodman Introduces Ozone Dentistry at His Beverly Hills Practice

Dr. Joseph Goodman is pleased to announce that he is now offering ozone dentistry at his Beverly Hills dental practice. European dentists have been offering ozone dentistry treatment for years, but it has only recently been introduced in the United States. Dr. Goodman is one of only a few dentists in the country to offer cutting-edge dental treatment with ozone, which is touted for its antibacterial properties and accelerated healing abilities.

Benefits of Using Ozone for Dental Treatment

Ozone is a powerful oxidant that kills bacteria, viruses and fungi. In small concentrations it is not harmful to the body; in fact, certain cells in the body’s immune system actually produce ozone in small quantities to help fight off disease.

Viruses, bacteria and fungi have no antioxidant enzymes in their cell membrane, so when infiltrated by ozone, the cell membrane ruptures and the cell dies. Studies have shown that ozone can help improve wound healing, immune system response and oxygen delivery to depleted tissues.

Ozone is used in dental treatment to treat the underlying cause of the problem, not just the symptoms. It is primarily used as a sterilization tool to ensure that the area to be treated is as clean and pathogen-free as possible. Ozone is also great for promoting healthy gum tissue. And, it helps accelerate surgical healing and reduce or eliminate post-treatment sensitivity.

How Is Ozone Used in Dental Treatment?

Ozonated water can be used to:

  • Rinse out and disinfect the mouth prior to treatment
  • Irrigate infected periodontal pockets (pockets within the gums)
  • Irrigate infected root canals and remove biofilm from the canals

Ozone gas can be used to:

  • Sterilize periodontal pockets where no other disinfectant can reach
  • Clean and prepare the treatment area before placing sealants, cavity fillings and crowns
  • Help in the recalcification of areas with cavities

Custom ozone trays can also be used to completely saturate an area with decay or suspicious tissue or lesions.

See full article HERE

Find your own ozone generator at our website.


Ozonia CFS Ozone Generator Tech Notes

Oxidation Technologies repairs, refurbishes, and sells used ozone generators.  Through our years of work with many brands of ozone generators we have learned many ticks of the trade that we feel are very valuable.  Our goal is to share this information with our customers and friends to promote the long term operation of every ozone installation.

This document is intended to help you get the most life out of your CFS-series Ozonia Ozone Generator. Whether used or new; following the advice outlined below will allow you to have a reliable and smooth running Ozone Generator for many years.

The operating instructions and advice found in this document serve as an addition to the Ozonia operator’s instructions. If these guidelines are followed, the CFS Ozone Generator can offer many years of reliable operation.



Ozonia has produced the CFS series Ozone Generator for over 20 years. They are some of the most popular water cooled Ozone Generators on the market today.

There are 2 main styles of these Ozone Generators:

  • Horizontal tube machines – older CFS-1, 2, 3, 7’s were configured with the Ozone Generator cells mounted in a horizontal fashion. These were produced with 1, 2, 3, or 7 Ozone Generator cells installed.
  • Vertical tube machines – newer CFS units using model CFS-2G-1, 3, 7, 14 were configured with the Ozone Generator cells mounted in a vertical fashion. These were produced with 1, 3, 7, or 14 Ozone Generator cells installed.

The same fundamental cell design and electronics have been used since the inception of the Ozonia CFS Ozone Generators. These are ceramic coated dielectric tubes sealed in a stainless steel corona cell. High voltage open coil style transformer is used at a frequency of ~1,500 Hz.

Repair and replacement parts are available from Ozonia and from the aftermarket for all of the CFS series Ozone Generators. For parts or repair, Oxidation Technologies can supply either original OEM or aftermarket parts for most all parts used in any Ozonia CFS Ozone Generator.


Corona cell

The corona cells used in the CFS Ozone Generators consist of a stainless tube with a ceramic coating on the tube that acts as the dielectric barrier to create the corona discharge. This ceramic coating cannot be repaired. If this ceramic coating is damaged the corona cell must be replaced.

Take care to keep your corona cell clean and dry at all times. Dirt, debris, or moisture on the dielectric will cause a hot spot and “pop” the ceramic coating off the stainless tube. This will create an un-repairable short in the cell and it must be replaced. There is no repair.

Aftermarket corona cells use dielectric tubes that can be replaced inside the corona cell. However, if this dielectric tube GOES BAD?, it cannot be repaired and must be replaced.


Corona cell purging

Ozonia requires that the Ozone Generator be purged with oxygen or air feed-gas (for between a few hours and 24 hours depending on conditions). It is our recommendation that the purge starts BEFORE cooling water is turned ON to prevent any condensation inside the corona cell. If the corona cell was open to ambient air that may have humidity in it, then cooling water is started, it is possible to create condensation on the dielectric tube. This condensation is difficult to completely remove during the purge cycle. If the Ozone Generator is purged for 1 hour prior to flowing cooling water it will prevent condensation.

The Ozonia Ozone Generator cannot be purged too long. We suggest purging your Ozone Generator with oxygen or dry air for at least 12 hours prior to operation.



An advantage of the CFS series Ozone Generator is that it can produce ozone efficiently from dry air or oxygen. However, it is very challenging, if not impossible, to maintain dry air that is pure enough and dry enough to not damage the Ozonia corona cell. Therefore, we recommend operating the CFS Ozone Generator on oxygen feed-gas only.


Cooling water (horizontal tubes only)

In the horizontal tube Ozone Generators it is important to remove any air pockets in the Ozone Generator cells. The cells will create air pockets along the top of the tubes, even with high cooling water flow-rates. The change is that there is no way for this water to escape. It is our belief that this is the main catalyst for the change to vertical tube orientation.

After cooling water is flowing, gently tilt the Ozone Generator to a 45-degree angle, front to back, to remove air pockets from the corona cells. Perform this tilt in both directions and this should remove all the air pockets from cooling water jackets around the corona cells.

Keep the cooling water circuit closed to ensure no air can enter the system at any times.


Power setting

The Ozonia Ozone Generators certainly offer the ozone production that they are advertised to make. We have found that 90-100% of rated ozone production is realized at a power setting of 70-75%. Power settings above 75% do not increase ozone production in any case other than the highest gas flow rate situations.

Due to the fact there is a diminished return on power input to the Ozone Generator cells, we suggest never operating an Ozonia CFS Ozone Generator at a power setting above 80%. It’s best to maintain a power setting as low as possible while still achieving the required oxidation in your application.

It is our experience that transformers and inverters overheat, and due to heat build-up in CFS series Ozone Generators, the overheated corona cells damage the dielectrics first. This can be avoided by following the power guidelines above.


Ozonia CFS series Ozone Generators can offer many years of reliable service if treated properly. We have seen these Ozone Generators in service for over 10 years with no failures of any parts whatsoever. If the Ozone Generator is purged properly, feed-gas is clean, and is run at a reasonable power setting with good cooling water, there is no reason the CFS series Ozone Generator will ever fail.

Should you have questions or are in need of service, please feel free to contact us.