Our Ozone Generators Review – A Must Read + The Ozone Generator We Use

Ozone Generators can be an effective accessory for odor removal, mold removal and smoke odor removal. Ozone can also be used effectively for removing stale food odors by using the shock treatment method. We have used hundreds of different machines over the years for treating many odors and below is our findings.

But first, you should take precaution when using ozone gas. All ozone generators should be used in unoccupied spaces only. You must remove any people, pets or plants before using the machine. Ozone gas is toxic so exposure can cause harm to your lungs. It is highly important you use the machine properly by following the manufacturers instructions. 

The best ozone machine for domestic purposes is the Enerzen Ozone Generator and for commercial operators we recommend the OdorStop OS2500UV ozone machine which is a more powerful and robust commercial ozone generator.

Ozone Generator Reviews

Ozone MachinePriceQuality
Enerzen Domestic Ozone Generators  Recommended$AAA+++
Airthereal Ozone Generator$A
OdorStop 2500 Ozone Generator Recommended$$AAA+++
Green Air Ozone Generator $$$B-
Enerzen High Capacity Commercial Ozone Generator 11,000mg$$AAA+

Best Ozone Generator for Home Use
Enerzen Ozone Generator Review

Over all we score this Ozone Generator very highly as these machines represent incredible value for money, have an outstanding output of Ozone gas for domestic applications (upgraded to 6000mg in 2019) and has been purchased by many of my customers with great success. It is even used to minimize smog seeping into apartments in big cities! The ozone generator has a great portability as well and can be used and transported easily.


For the price this Ozone Generator is manufactured very well and is durable for normal use in a residential situation or for small areas if you are a commercial operator.

User Friendly

Easy to use controls and useful timer. Ozone Generators can be hard work some times but not this one. Excellent carry handle for transporting and a good weight, not too heavy and not too light.

Ozone Output

The Ozone output is outstanding and definitely the highlight for us along with the solid manufacturing of this unit.
The quality of manufacturing has consistently improved over the last 5 years

Our review of the Enerzen Commercial Ozone Generator

We own 5 of these machines and have had them for over 5 years now. We purchased these to do interior ozone shock treatments in cars, houses (small rooms), and pet facilities. We find them more reliable than UV ozone machines, and extremely inexpensive. 
The machinery will do a whole house (good amount of o3 output) if you move it room to room (make sure you let the gas dissipate first) or you can leave it in a central position and  for 24 hours with airflow generation done with fans . Great for sanitizing dander also. The Enerzen purifier is a powerful little unit and the Ozone Pump is strong enough to penetrate into the far reaches of a whole house.
The first thing that impressed us about these machines is the solid manufacturing and the amount of small bolts firmly holding the machine together. Some other Ozone machines we have used are very poorly constructed and do not have enough fastenings to handle the rugged life a contractor gives it, but not these unitsThey are very solid.
The unit is lightweight and easy to transport and a sensible size for storing away and placing in the work vehicle.
Size: 6.75″(H) x 8″(W) x 5.75″(D)
The generator weighs about 5 pounds and comes with US 110 voltage and 55 watts of power for the generator. It uses Corona discharge method of generating ozone which means less maintenance and all in all these are incredible value for the price.  The corona discharge means  no copper lining and no UV bulbs to break. But at the price of these ozone machines it’s not a concern as they last for years any way. We have found the slide connectors inside the units to be quite thin however this also is not a big concern and very cheap to replace if required. The  Commercial Ozone Generator has a powerful 6000 mgs/per hour of output, and a very useful timer with max setting of 2 hours. You can run the machine on “continual” and turn on and off manually. This is very helpful when using the machine for Ozone Shock Treatments such as getting rid of cigarette smoke smell in car .
The machine is well constructed and very good value for money.
Over all we love this machine and for the price you won’t beat it.
Click here for more information

Easy to Carry
Well built
High Ozone Output
Very Economical
Does the job beautifully
Long lasting (years!!)
Power cable could be longer
(You will need to use an extension)

Client Comment :
Amazing Machine!
…Does what it says. It got rid of the stale cigarette smell in the car we bought for my daughter. .
Published 2 days ago by Bob

Best Commercial Ozone Machine – Odorstop Ozone Generator

Over all we score this Odorstop Ozone Generator the best for commercial applications where more ozone is required and also more fan speed to push the ozone out into the far corners of the area being treated. These ozone generators are well priced and represent good value for money. The units have a high output of Ozone gas for commercial applications (upgraded to11000mg) The ozone generator has transported easily and although heavier than its domestic brother it is still very manageable.


The Odorstop Ozone Generator is manufactured to a durable standard for commercial use and the plates are able to be replaced and serviced making this amazing value for money. The service from Odorstop is good and parts are easily obtainable

User Friendly

Very well constructed and easy to use controls with a useful timer as well. Excellent robust carry handle for transporting and being heavier than Enerzen it is ideal for transporting in a work vehicle. So over all this unit is easy to use and very effective.

Ozone Output

The Ozone output is high and care is needed. The ozone output and the ability to change out the internal plates is definitely the highlight for us along with the solid manufacturing of this unit.
The quality of manufacturing has consistently improved over the last 3 years along with the service as the company has grown.

Summary Of Odorstop Ozone Machine Features

Our review of the Odorstop 2500 Ozone Generator Another great unit from the Odorstop Stable and this one caught our eye due to the ease of servicing the Corona Discharge Plates and the ability to buy spares as shown below, The parts are easy to install and are very well priced.

Price: This unit is dearer than the others and the reason for this is it’s a commercial grade machine with the ability to service and replace parts. It is also a silent ozone machine.
Most Ozone machines use a Corona Discharge Method where a current is passed between metal plates and the air passing through is oxidized and turns into O3 gas. The plates get build up on them of contaminants and this can affect the Ozone Gas Output.

This machine allows you to easily remove the Metal Ozonator Plates and replace them inexpensively with new ones thus making the unit last for years. The commercial operators or landlords will be interested in this unit as it will last longer than the cheaper ones due to the ability to be serviced and have the Ozone parts and plates replaced. We think for some one working in a business using this machine, this is essential.

Design: The machine also has an air inlet filter (albeit thin) but at least it is something to try to keep the dust out. The units are quite pricey but for a commercial operator these come highly recommended for the ability to replace the ceramic plates. With Ozone machines you have two choices really. Buy something cheaper like the Enerzen and when it fails throw it away or invest more and get a commercial unit like this one and service it to make it last for 10 years or more. The machines are well constructed, solidly built and weighing in at 9.5 pounds she is quite heavy, but if you are a commercial guy weight is good!. It means the machine will be well constructed and have solid parts which is what we need for durability.
Odorstop also do a great range of blowers as well as ozone machines

I had a small water issue that left my entire house smelling damp, musty and just awful. I was trying to figure out what you do as everything in the house, i.e., furniture, clothing, you name it smelled awful. I remembered the clean up companies bringing in several ozone regenerators and how well they worked. I also recalled that my insurance company had to pay a bit over $14,000 for dry cleaning my clothing, furniture and mattresses. I purchased this and just received it. I have a large room that I had turned into a closet. I put the ozone regenerator in for 6 hours on medium. I am so thrilled. The odor is completely gone from all my clothing, the carpet, the curtains – the entire room. This is fantastic for such a small price. The room and clothing smell very fresh as if the windows were open in the spring. I cannot thank you enough for making such a great product!

What is Ozone?

o3 Ozone gas is a naturally occurring substance which is present in our environment and is caused by electrical currents in UV rays reacting with oxygen and forming a short life gas called o3.  Ozone generator machines (that we do machine reviews on) are a manmade way of duplicating nature and increasing the amount of ozone particles.

o3 Ozone gas is prevalent in the ozone layer and provides protection by breaking down ultraviolet radiation from the sun.  
At times Ozone gas is very prevalent on earth, particularly after an electrical storm,  when O2 gas (oxygen) is split by the electrical currents in the lightening storm and o3 gas (ozone) is created.  

Ozone breaks down very quickly particularly when there are a lot of electrolytic particles in the air known as contaminants. In highly populated areas on earth, ozone is not as effective due to the pollutants in the air. Pollution is reduced when satisfactory levels of ozone are around however humans can not breathe large levels of ozone gas as it is toxic to breathe in when it is concentrated. It will cause an irritation to the throat and lungs.
An Ozone generator machine simply  replicates nature and splits oxygen into ozone gas as a discharge via an outlet, however because the amount of ozone produced is high it is toxic to breathe. The machine typically pumps the ozone out into a room and can be turned off when required and allowed to dissipate before entering.
Ozone gas contains nitric oxide and this is why oxygen generators are often attached the source of air to form pure ozone. When moisture is mixed with ozone a residue called Nitrogen dioxide is formed and is corrosive to many items, so care is needed. High levels of moisture and humidity are required for this to happen so it is recommended to use dry air as a source for your machine.

Is Ozone effective at disinfection?

Ozone at the right concentration, is effective for apartments and living areas to provide sterilization for bacteria and viruses if done regularly using shock treatments. (small doses at regular intervals)
Ozone o3 is widely used in pet shelters to treat enveloped and non enveloped viruses. This is done with stronger levels on ozone gas. (More than 30 grams per hour) and is done overnight when all animals are removed and after a thorough clean down first. Note the treatment needs to be done on dry surfaces to ensure maximum effectiveness.

Is it safe to use Ozone in my home?

Lets be very clear. Ozone is a toxic gas and needs to be used with ozone 03 safety precautions in place. An expert commercial operator who understands the dangers of o3.  Humans are not designed to breathe in concentrated forms of ozone gas o3 and doing so will lead to  problems. Your ozonator sellers should provide some service manuals with the precautions listed.

Having said that even the best Ozone generators used incorrectly will still do damage. However using a ozone machine at the right concentration, with the right safety precautions is a very effective way to provide sterilization for apartments and living areas. Ozone Shock treatments is another effective way to remove mildew and mold, however it should be noted that most ozone machines output nitric oxide when o3 is live which is toxic to humans  and should never be breathed in. So when searching for ozone generator reviews it is worth noting if the machine has an effective timer. If not then you can pick one up from a local hardware store. The critical thing here is all ozone shock treatments should be performed using a timer so the o3 gas has time to dissipate and turn back into oxygen before the occupier of the house comes home.  

Ozone is used for removing arsenic from water

Should you buy corona discharge method, ceramic ozone generator, ozone purifiers, Hvac, or ionizers. 

Its fair to say I am biased towards using ozone generators and in this article we review the best ozone generators.
We look at timers, weight and quality of manufacturing, engineering and portability attribute.
With the incredible amount of uses for an ozone generator around the home or office, Ozone is a great solution for odor removal, deodorizing, and sanitizing including  getting rid of cigarette smoke from vehicles.

As Odor Removal Experts we are happy to share what we have learned about the best ozone generators for the home and commercial work. Ozone generators. We list our opinions and findings below. We hope you enjoy our reviews useful and as you will notice this page is updated regularly so you know the information is latest breaking news. 

Buying online allows home and pet owners alike to source a reliable machine that will serve them for many years to come if they buy it right. There are of course many ozone generator machines that we don’t recommend as the parts are inferior.
This Ozone Generator Review page is updated regularly and we don’t hold back if the machine is a dud!!