Frequently Asked Questions

Browse our list of FAQs about ozone and ozone solutions. Don’t see an answer you’re looking for?  Submit your question so we can help!  Contact Us

What is ozone?

Generated from sunlight, ultraviolet rays and lightning, ozone is often referred to as nature’s disinfectant. In fact, many people notice that ozone has a distinctive sweet odor, similar to the smell after a summer rainstorm likely because lightning is one way ozone is produced in nature. Ozone is nature’s way of controlling bacteria growth within our environment. Ozone has been proven to have a much higher disinfection potential compared to all other disinfectants available for use today. It can effectively reduce viruses, bacteria, fungi, and parasites, including those causing food spoilage or human diseases.

What is the chemical make up of ozone?

A molecule of “normal” oxygen is comprised of two atoms of oxygen bonded together (O2). Ozone (O3) is created by adding a third oxygen atom to the oxygen molecule. As the newly formed ozone molecule is used up, (either by attacking impurities or through normal degradation), it is changed back to normal oxygen, leaving no harmful by-products in your water. Ozone has been proven to have a much higher disinfection potential compared to all other disinfectants available for use today. Ozone is completely natural and occurs in the environment every day.

Is using ozone technology safe?

Yes. Unlike other water treatment processes, oxidation is a natural, chemical-free process that produces zero wastewater and leaves behind oxygen molecules like the ones in the air we breathe. Thousands of cities worldwide including London, Moscow, Paris, Singapore, Los Angeles, and Milwaukee, to name a few, have been using ozone water treatment systems for many years. Most top water bottling companies also rely heavily on ozone technology to disinfect bottles and provide clean, safe water for consumers.

How is ozone different from chemical treatments?

Ozone reduces microorganisms instantly and effectively without leaving harmful residue in treated food or processing water. Therefore, ozone is safer and environmentally friendlier than most other antimicrobials. For example, ozone reduces bacteria 3,125 times faster than chlorine.

Where can ozone water treatment be used most effectively?

Ozone treatment can be used for a wide variety of applications. Commercial uses of ozone include purification of drinking water, sterilization of medical instruments and devices, decontamination of fresh produce, and food preservation. Ozone also is useful in removing odors, and not just in drinking water.

How is using ozone with a carbon filter system effective?

Carbon filters can be used very effectively with ozone generators. Carbon filters remove large particles such as lead, copper and other sediments from turbid water. Ozone gas is injected into the filtered water, naturally reducing bacteria to produce the purest form of water. This water can be used for many applications such as decontamination of produce, countertops and other surfaces, baby bottles, and of course for drinking.

How are ozone treatment systems different from other methods?

Ozone is most effective in reducing bacteria and disinfecting than any other method including reverse osmosis, ultraviolet light, and regular filtration. Ozone treatment systems are also much simpler to use than other methods, and in most cases, do not require multiple pieces of equipment. Portable systems provide the versatility to install in different and varying locations where water purification and disinfection may be needed.

What contaminants does ozone reduce from water?

Ozone can effectively reduces a wide range of contaminants, including:

  • Bacteria and viruses
  • Algae
  • Organic pollutants
  • Iron and manganese
  • Hydrogen sulfide
  • Certain pesticides and pharmaceuticals

Does ozone have any effect on water pH?

Ozone generally does not affect the pH of water. It mainly targets organic matter and certain inorganic contaminants without altering the pH balance significantly.

How does ozone compare to UV light in water disinfection?

Both ozone and UV light are effective for disinfection. Ozone offers the additional benefit of oxidizing and removing contaminants, while UV light primarily focuses on reducing pathogens without altering the water chemistry. Ozone also continues to disinfect throughout the system, whereas UV is only effective at the point of contact.

Is ozone effective in saltwater applications like aquariums?

Yes, ozone is commonly used in saltwater aquariums to improve water clarity, oxidize organic waste, and reduce harmful pathogens. However, ozone dosing must be controlled to avoid over-oxidizing beneficial organisms and corroding metal components in the system.

Can I use ozone for pool or spa water treatment?
Yes, ozone is widely used in pool and spa water treatment systems to reduce chemical usage, improve water clarity, and eliminate odors. 

How are ozone generators rated by the manufacturer?

Ozone generators are typically rated by manufacturers based on several key specifications and performance metrics. Here are the most common criteria used:

  1. Ozone Output: This is usually measured in milligrams per hour (mg/h) or grams per hour (g/h). It indicates the amount of ozone the generator can produce in a given time period.
  2. Ozone Concentration: Some manufacturers provide information on the concentration of ozone that can be achieved in a given space, usually measured in parts per million (ppm).
  3. Power Consumption: The amount of electricity the unit uses, typically measured in watts (W). This helps users understand the energy efficiency of the device.
  4. Operating Modes and Controls: Details about different settings, timers, or adjustable output levels that allow users to control the ozone production according to their needs.
  5. Durability and Build Quality: Information about the materials used, design features, and any certifications (such as CE or UL) that indicate compliance with safety standards.
  6. Additional Features: Some models come with extra features like remote controls, built-in air purifiers, or filters, which can enhance functionality and convenience.
  7. Warranty and Support: Length and terms of the warranty, along with customer support options, provide insight into the manufacturer’s confidence in their product and their commitment to customer service.

These ratings and specifications help consumers compare different models and choose the one that best fits their needs for air purification, odor removal, or other applications requiring ozone generation.

What’s the primary purpose behind generator design?

To convert as much of the feed gas as possible into ozone (The ratio of the amount converted to the amount not converted is the ozone CONCENTRATION

Why is concentration important?

Low ozone concentration (gr/m3, wt.%, ppmv) requires higher feed gas flow rates to make a given amount (gr/hr) of ozone.

What’s inside an ozone generator?

Follow the link for a detailed description: Inside an ozone generator

Can ozone generators remove all types of contaminants from water?
Ozone is effective at reducing pathogens (bacteria, viruses, protozoa) and oxidizing many organic and inorganic compounds (such as iron and manganese). However, ozone does not remove dissolved solids or chemicals like lead, fluoride, or other heavy metals. Additional filtration methods may be needed for comprehensive water treatment.

How energy-efficient are ozone generators for water treatment?
Modern ozone generators are designed to be energy-efficient, especially when compared to traditional chemical-based treatments. However, the efficiency depends on the size of the system, the generator’s technology (corona discharge vs. UV), and the application. Many systems are optimized to use minimal power while still producing effective ozone levels.

Are there any environmental benefits to using an ozone generator?
Ozone is a green technology because it does not leave harmful residues or chemical by-products in treated water. It can reduce reliance on chemical disinfectants, which helps lower the environmental impact of water treatment processes.

Is there any risk of ozone leakage from the generator, and how can I prevent it?
Ozone in high concentrations can be harmful if inhaled, so it’s important to ensure that any off-gassed ozone is properly vented away from occupied spaces. Many ozone systems are equipped with ozone destruct units that safely break down excess ozone. Regular inspection and maintenance can prevent leakage.

How long does it take for ozone to treat water?
Ozone works quickly and usually disinfects water within minutes of contact. However, the exact contact time depends on the concentration of ozone, water temperature, and the nature of the contaminants. Many systems use contact tanks or retention times of a few minutes to ensure proper disinfection.