Best Ozone Generator Reviews and Buying Guide 2020

Best Ozone Generator Reviews List (updated Jan 2020)

1. Enerzen Commercial Ozone Generator

This commercial machine is the best rated ozone generator for large rooms and basements, thanks to its excellent capacity, a large number of features and a small price tag. In fact, it’s the best price to feature ratio you can get on the market today.

This machine can produce up to 14,000 mg of ozone per hour, which is suitable for large areas. So if you have a big basement or a large living room, this model is for you. You can use this generator in smaller rooms as well.

Here at freshairguide, we had the chance to test out this ozone generator recently. We had a bad case of mold infestation in the basement of our home/office and after cleaning the home of all traces of the mold growth, we decided it was a good idea to buy this unit based on all the quality reviews we read about it. I can honestly say it was well worth the money. The musty odor was completely removed and we haven’t had it come back yet. Its been 6 months. I’m sure we will no doubt have to use it again, but for now I can safely say our home is mold free once again.

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This unit starts showing results after only 20 minutes of work. It can deal with the toughest odors, such as etched-in cig smoke. It’s important to follow instructions when using this unit to achieve the best results. I would recommend this unit to homeowners, who experience odor and mold problems in large rooms and basements. The reasonable price tag makes this odor generator highly appealing.

RELATED POST: Read my full Enerzen Commercial Ozone Generator review

Best Whole House / Large Ozone Generators Runner Up

2. Airthereal MA10K PRO Industrial Generator

This industrial unit is an excellent choice for large houses, offices, hotel rooms, etc.

This is one of the top rated ozone generators on amazon. It produces up to 10,000 mg of ozone per hour, which means the air in an average living room could be clean in less than half an hour.

The service life of this generator is 20,000 working hours. Such a unit could serve you flawlessly for many years.

This machine does an excellent job of getting rid of numerous household odors. It can eliminate kitchen and bathroom smells in just a few minutes. By running this unit twice a week, you could enjoy fresh air round-the-clock.

The generator comes equipped with a timer, which makes it easy to operate the machine. It’s vital to follow all instructions provided by the manufacturer. Remember, ozone odor eliminators shouldn’t be used when people or pets are in the room.

This home ozone generator can clean a 200 sq. ft. room in just 10 minutes. It would take this unit 90 minutes to take care of a 1,500 sq. ft. area.

The ozone odor eliminator comes with a 3-year warranty that covers defects due to faulty materials or workmanship of the product. It requires minimal maintenance, which involves manual cleaning of the ozone plates.

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This is one of the top ozone generators for home use as it’s one of the best at killing strong odors, viruses, mold, and bacteria in the air.

It’s an excellent choice for large households, basements, offices, labs, and healthcare facilities. The generator can clean an average room in under 30 minutes thanks to its large capacity and ability to generate 10,000 mg of ozone per hour and it comes with a reasonable price tag for an excellent device that can service your home for many years.

Top Ozone Generator and Air Purifier In One

3. Green Air Pro 2 Plate HEPA Alpine Air Purifier Ozone Generator

I’ve chosen this UV ozone eliminator for its multiple functionalities and great ability to deal with mold.

If you are looking for ozone machines for sale at the moment, then this hefty device might make you think twice. The unit is both an ozone generator and air purifier. If you do a search for ozone air purifier reviews , you won’t find many and we’re not sure why. Seems like the best combination.

This unit is equipped with a hospital-grade HEPA filter, which deals with 99.97% of contaminants 0.3 microns in diameter. Basically, it can take care of the majority of pollutants, allergens, and odors in your home.

This device also features a UV lamp, which you can turn on whenever you would like to battle viruses and bacteria in the air.

The entire filtration system is washable so you don’t need to invest in additional consumables.

This industrial size device can clean large rooms, basements, offices, and entire houses. It can service up to 3,500 square feet of space.

It’s hard to say that this bulky unit has an excellent design, but then the majority of such appliances aren’t appealing either. The good part is that you can only use it when no one is in the room and put it away when you don’t need it. The box is made out of aluminum while the grill is plastic.

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I would recommend this product to homeowners who want to keep the air clean in the entire house by using just one appliance.

Whilst a regular Air Purifier can help fight mold in the air, this ozone generator air purifier is powerful enough to clean large areas as it can deal with the toughest odors you can throw at it.

Even though the price tag may appear a bit high, it’s quite reasonable for such a multi-functional product.

Best Medical Ozone Generator

4. Dr O Health Solutions Medical Ozone Generator

Some healthcare professionals believe that a medical ozone machine can help deal with a variety of conditions, including acute pain, rheumatoid arthritis, postoperative complications, nervous system problems, diabetes, Crohn’s disease, and many more.

It’s important to use any personal ozone generator under your doctor’s supervision at all times.

This medical unit works with special ozone tanks to provide a feed of ozone directly into your body. It is a powerful unit, which is easy to operate and comes with a one-year warranty from the manufacturer. Dr O Health Solutions promise that the generator can work for up to 10,000 hours.

This ozone device can’t be used for air purification or odor elimination at home without a special air pump. However, it may become your best friend if you are suffering from conditions that will respond well to ozone treatment.

High-quality medical ozone generators are tough to find. If you do a search it’s really hard to find ozone machines reviews on medical devices. That’s why this particular generator is highly demanded by healthcare providers. Unlike a household device, this appliance requires pure oxygen to work. You have to buy the medical oxygen supply separately, which can also be found on Amazon.

The device comes with all the necessary connection tubes and wiring as well as a foam bin for storage.

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I would recommend this medical ozone odor eliminator to healthcare facilities that feel their patients may benefit from such a device.

Medical-grade generators have numerous benefits and can be used to treat many different conditions. However, I strongly recommend any homeowner to read the manual and get professional advice before using such machines for medical purposes.

Best Cheap Ozone Generator

5. Mammoth Commercial Ozone Generator

This ozone cleaner comes in three sizes: 3,500 mg ozone output per hour, 5,000 mg per hour and 7,000 mg per hour. Depending on the space you need to clean and the time you have to clean it, you can choose the size suitable for your needs.

The largest unit in the series can clean air in a room of 1,000 square feet in just 15 minutes. The smaller version can clean the same room in 20 minutes. The small ozone generator in the range (3,500 mg/h) can do the same job in 30 minutes.

All three versions of the model are durable and powerful. They do an excellent job dealing with all types of odors and battling viruses, bacteria, and mold.

This ozone cleaner can be an excellent choice for homes, offices, and healthcare facilities. It can be a savior for households with pets and smokers.

Since the device can’t be used in the room with people or pets, it comes equipped with a useful timer with a 20-minute interval. You can set it for the time needed to clean the room and leave. When you come back home, you are likely to be pleasantly surprised by how fresh and clean the air feels and smells.

The best ozone machine has to be made of durable metal and this one does. It comes equipped with a handle for easy transportation. Even the most powerful version is not too heavy – only about 10 pounds.

The generator has a washable pre-filter so you don’t have to worry about costly replacements and it comes with a one-year manufacturer’s warranty.

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I would recommend this unit to any homeowner, who is looking for a top-quality model at a low price. This ozone device has all the necessary features to keep the air in any home clean. It’s also suitable for offices, healthcare facilities, and small areas, such as cars.

Best Commercial Ozone Machine

6. OdorStop Professional Grade Ozone Generator with UV

This is the best commercial odor generator I’ve reviewed. Depending on your needs and the area you need to service, you can choose a certain model. It comes in 13 different sizes, which is pretty impressive.

Some of the larger industrial models come with two or three ozone plates, making the output much more efficient for sizeable areas.

I appreciated the durability of this unit. Metal casing and ceramic plates are definitely made to last. I bet that’s the reason why the manufacturer offers an impressive five-year warranty for the generator. The smaller models have been on the market for a while, and they’ve shown excellent durability.

It is equipped with a UV light purifying system. So you can turn the ozone generating feature off and keep cleaning the air with the UV light. This is very useful since the UV light treatment system can be used with people in the room while the even the best ozone device can’t.

Unlike the majority of devices that I’ve reviewed, this series has a nice design. All models come in a nice blue color and have a well-designed control panel. In larger models, you can regulate the power of ozone output.

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If you have read many commercial ozone generator reviews online, you know this is the device to buy for large industrial uses. However, I would also recommend the smaller versions of this unit to homeowners, who are looking for a powerful two-in-one air cleaning system. Either way, this professional UV ozone generator does a fantastic job. I really appreciate the UV light feature, which can continue cleaning the air even when you are at home.

The nice design and the powerful fan make this unit one of the best commercial models on the market today. Thanks to the big choice of sizes, a home, office or commercial facility owner can choose a model for their needs.

Best Portable Ozone Generator

7. Ivation Portable Ozone Generator

This cheap ozone generator is an excellent choice for anyone, who wants to go beyond air purification to purify water, oil, baby bottles, and much more.

The device is portable so you can carry it anywhere and place it in any room depending on your needs. It has an excellent design and numerous functions.

Even though this device is small, it produces 600 mg of ozone per hour, which is enough to purify the air in an average room. The device deals with odors, viruses, bacteria, fungi, mold, mildew and more.

Smokers and pet owners are likely to appreciate this machine since it doesn’t take up too much space while cleaning the air in an impressive manner. It can also be a great buy for homeowners, who face mold and mildew due to a high-humidity climate.

The unit features an LCD display, which shows how much time is left for purification. The unit has a timer for convenient operation.

This device is easy to use. If you leave it working for several hours, it can easily purify a large house. Overall, it’s a multi-functional device with an excellent price tag. It can be a wonderful choice for home and apartment owners. Office workers can also appreciate such a device that can clean air in cubicles and large open-space areas.

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I would recommend these machines to homeowners, who are looking for a low-priced portable unit. If your goal is to purify the air, water, and oil as well as sterilize utensils, baby bottles, and much more, such a portable device can make your life much easier.

Ozone Generator FAQ

What Is Ozone?

Ozone is a gas that consists of three oxygen atoms (O3).

Small amounts of ozone occur in the stratosphere naturally. This gas plays an important role in protecting life on Earth from UV radiation.

In the troposphere, ozone occurs because of a chemical reaction between air pollutants. A high concentration of ozone is toxic to people, animals, and plants. We call this “bad” ozone. Bad ozone contaminates the air and can cause cerrtain types of smog and haze.

In the stratosphere, ozone appears when sunlight splits oxygen into separate oxygen atoms. They rejoin to make O2 (oxygen) or O3 (ozone). This type of ozone is called “good” ozone.

Ozone machines create what we know as “good” ozone.

How Does an Ozone Generator Work?

What is an ozone generator and how does it work? Many people wonder how it’s possible to create “good” ozone down here on ground level as well as use it for cleaning the air in our homes and workplaces. Ozone generating machines achieve the goal by using a silent corona discharge method.

To produce good ozone, you need a machine equipped with dust filters, an air dryer, a generator, a contact unit, and a torch destructor. You also need a source of oxygen. The device creates an electrical discharge similar to lighting. This splits the oxygen molecules into single atoms. Single O atoms attach themselves to O2 to create O3. The machine then discharges O3 into the room.

Warning: It is imperative that the ozone generator you purchase includes an Air Dryer.

When creating ozone using the Corona Discharge method you also create Nitrogen Oxide as a byproduct. At room temperature Nitrogen Oxide will turn into a vapor that leads to the creation of Nitric Acid that is hazardous to our health. Symptoms include shortness of breath, a burning sensation throughout the respiratory system, headaches and chest pains.

An air dryer will inhibit the vapor formation and actually increase the amount of ozone created at the same time. Along with ensuring no living being enters the room within 2 hours of the ozone treatment and you will successfully avoid any interaction with this hazardous substance. However, if that’s not enough to ensure your peace of mind, then you could also make sure your ozone machine includes an Oxygen Concentrator. This device will increase the ozone production which will further inhibit Nitrogen production.

Ozone molecules come into contact with other molecules, such as air contaminants, and break them down. They are especially useful in combating odor-causing particles. However, O3 can also deal with mold, mildew, viruses, and bacteria.

Many people wonder how to tell if the ozone machine is working. Well, simply put, when you enter the room, you’ll know that it has been working. The air should have that crispy fresh scent that you are used to smelling after it rains. When the same smell occurs in your room, it means your ozone machine has done a good job.

Do Ozone Generators Work on Cigarette Smoke?

One of the main reasons people turn to ozone generators is due to odor. They do an excellent job battling cigarette smoke in the air. They even work on old smoke odors, which are almost impossible to get rid of by normal cleaning or common air purification methods.

Smoke is very effective at penetrating fabrics and soft furnishings. Even with thorough cleaning, it’s very hard to totally eradicate the odor at this level. However, with the right preparation steps and a high-quality ozone eliminators, it’s possible to get rid of cigarette-related odors that have penetrated fabrics and furniture. This is an excellent solution for households with smokers or hotel rooms. An ozone-generating machine can potentially save thousands of dollars on a new interior.

Why Are Ozone Generators the Best Odor Eliminators?

When you face harsh odors, you are ready to do anything to get rid of them. The majority of methods are either too drastic, too expensive or not sufficient. For example, to get rid of odors caused by a variety of things, many people throw out fabrics and furniture. This method is obviously too expensive.

To deal with kitchen odors, many homeowners invest in air purifiers with activated carbon filters. These machines do a good job filtering out odors during the cooking process or right after it. But they work with contaminants in the air only. So anything inside the fabric is out of their jurisdiction.

Ozone attacks all odor molecules and destructs them immediately. When used correctly, an ozone generator is the best odor eliminator for households and commercial facilities. Odor-causing bacteria don’t stand a chance against ozone. Generators deal with such odors as sweat, cigarette smoke, skunk, mildew, mold, food, “locker-room” smells, and many more.

Ionizer vs Ozone Generator

Ionizers and ozone machines are two different machines. An ionizer works by attaching negatively charged ions to the positively charged contaminants in the air. Particles become heavy and either fall to the surface (so you can clean them with a wet cloth) or get processed by the air purifier (if an ionizer is a part of the air purifier). Ionizers could produce a tiny amount of ozone but not enough to remove odors. As opposed to ozone devices, ionizers can be used in rooms with people, pets, and plants.

O3 Generators do a much better job cleaning the air and getting rid of odors than ionizers do. However, they can’t be used around people and pets.

Activated Oxygen vs Ozone

Some people believe that activated oxygen and ozone are two different things. However, activated oxygen is just another name for ozone. Ozone aka activated oxygen is a three-atom molecule, which has powerful oxidizing properties.

Are Ozone Machines Safe?

Many people are concerned about safety. Are ozone generators dangerous? Can you use them in your home without worrying about the consequences?

The key to ozone machine safety is knowing how to use them. Ozone molecules are volatile. They don’t just break “bad” molecules that odors, mold, and viruses consist of. They can also attack “good” living molecules. That’s why it’s vital to run any ozone odor eliminator when all humans, pets, and plants are out of the room.

An ozone molecule is very weak. It exists for one to two hours and then turns into oxygen again. That’s what allows us to use them at home.

The majority of ozone units come equipped with timers. They turn off when the set time is up, allowing you to safely enter the room after about two hours. Ozone machines are safe only if you use them according to the instructions. Otherwise, they could be dangerous to your health.

How long does ozone last?

Ozone does not last very long in domestic environments as it becomes subject to several processes as soon as it is released into the room. This includes oxidization reactions as it comes into contact with bacteria and organic matter such as odors. As a result of these processes, ozone quickly turns into oxygen. In practice, ozone will usually dissipate to negligible amounts in 30 minutes. Based on this, how long should you run an ozone machine? A rough guide is 1 to 2 hours based on the size of the room.

What is Ozone Shock Treatment?

Ozone shock treatment involves exposing an enclosed place to extremely high levels of ozone in order to rid it of offensive smells or mold.

Many people online talk about Apartment Ozone treatment, but really you can shock any kind of enclosed space, be it a domestic or commercial environment or even a car. As lethal amounts of ozone are produced by an ozone machine in order to achieve the desired effect, it is important clear the space of all human beings, animals and plants and allow time for the ozone to dissipate before returning.

Do ozone generators kill mold?

Ozone is a highly reactive gas that is lethal to organisms. As mold is a fungus, ozone can be used to rid the air of mold spores. The same properties that make it dangerous for human and animals allows it to destroy mold in a house or business. Note, however, that while ozone kills mold, it cannot completely get rid of a mold infestation and should be used in conjunction with other methods when there is a severe case of mold.

Will ozone kill bed bugs and Termites?

Since ozone is lethal to life forms, buying an ozone generator for pest control is a viable option as a large quantity of ozone is capable of killing bugs and termites. For this to happen, a room must be subject to shock treatment or be treated with ozone over a long period of time. Bear in mind that ozone doesn’t kill the eggs laid by termites and bugs. You also need to adopt measures to prevent the termites and bugs from returning.

Will an Ozone Generator Kill Plants and pets?

As with humans, ozone can cause respiratory difficulties in pets. Birds are particularly susceptible to it and can be killed very quickly. Other pets such as cats and dogs will find it difficult to breathe after exposure to ozone. Plant cells also react with ozone leading to the death of the plant. Is ozone a carcinogen? You don’t have to worry as it is not regarded as a carcinogen at this point in time.

What does an ozone generator smell like?

If you have used an one in your home, you may have wondered, why does ozone smell bad? The smell of ozone has been described as having a pungent quality similar to chlorine. It has also been called a ‘metallic’ odor. The nose is incredibly sensitive to this smell and is capable of detecting it in extremely minute quantities.

What size ozone generator do I need?

The size of the unit you buy will depend on the size of your room and whether you are planning to use it for shock treatment. Keep in mind that a smaller unit will be easier to carry from room to room. More manufacturers have guidelines for which models are suitable for different sized rooms so check before buying.

How much does an Ozone Generator Cost?

The cost of a good device can vary widely from less than $100 to over $10,000. Obviously the most expensive ones are more suitable for commercial applications. The amount you spend will depend on the size of the room, the number of rooms that you will be using it and if it will be used for ozone shock treatment.

Ozone Generator Safety

Ozone Generator Warnings

While ozone is very useful in the upper atmosphere, it can be quite harmful at lower heights. Being a highly reactive gas, it will turn into hydrogen peroxide on contact with water, including the water found on our bodies. It can also cause serious respiratory ailments, especially if there is long term exposure. People have complained of coughs and chest pains after exposure to ozone. It is also harmful for pets, especially birds, and can also kill live plants.

Ozone Generator Repairs

Occasionally, these machines can develop problems such as leaking ozone or not working altogether. Fortunately most modern units have a lot of parts in common, making repairing it a fairly straight forward affair in most cases. Due to the toxic side effects of ozone, you should get your generator repaired promptly if you suspect that gas is leaking from it.

Can you Repair an Ozone Generator?

No. Due to the toxicity of the ozone and the dangers of having a malfunctioning machine, repairs should always be done by a trained professional.

How Do I Test an Ozone Generator?

In commercial environments, an Industrial Ozone Machine can be tested using an ozone meter to measure the ozone concentration of the air being released by the generators. A monometer may also be used to measure the strength of the airflow. In homes, the simplest way to detect if the generator is working properly is to see if you can get that ‘after a rain storm’ smell in the room that it is being used.

How long do ozone plates last?

With proper maintenance, ozone plates can last up to 7 years, but they can need changing after year 1. It just depends on maintenance and luck!

How to clean ozone plates?

Ozone plates must be cleaned every 3 or 4 months, and even more often if it used in a house that has a lot of smoke or other odors. If you notice a smell coming from your ozone making machine, it is time to clean the plates. This is easily accomplished in most models as the plates easily slide out of the machine. The plates should then be thoroughly cleaned using bleach or detergent. Remember to dry the plates completely before reinstalling them.

Ozone Generator Reviews: Conclusion

It has to be said, a good ozone emitter is fantastic at fighting odors and other contaminants, such as viruses, bacteria, mold spores, and more. However, it’s vital to use them properly and according to the instructions. Otherwise, these machines could be harmful.

Buying an ozone generator for mold and odor control can improve the quality of your life tremendously. This is especially true for households with smokers and pets as well as hotels, restaurants, and other places where bad odors are common. However, unless you have an especially bad problem with smoke or odor, you should probably stick to air purifiers to solve the smaller day to day issues.

Check out our guides on Smoke air purifiers and Odor air purifiers for more info on those

I hope our ozone machine reviews and buying guide have helped you make a decision about purchasing one of these fantastic appliances for your home or facility.