8 Best Ozone Generator For Grow Room

If you are a seasoned cannabis grower, you understand the importance of protecting your indoor cannabis farm. It is especially crucial if you are growing weed in an area that is legally not accepted. However, marijuana has a noticeable odor that many people can identify. The smell is very pungent that it may be willingly inviting the authorities to your doorstep. The odor may even get the attention of nosy neighbors who will then want to find out what is in your house. But how do you safeguard your farm when it produces such a smell?

You need to find ways that can completely get rid of the cat calling odor. One of the best methods is by introducing an ozone generator to your grow room. Unlike air purifiers, ozone generators can get rid of marijuana odor. It as well kills all the micro-organisms and bacteria in the air. Just like any other devices, there are many ozone generators with different price points and level of quality. Even so, the criteria for choosing the BEST OZONE GENERATOR is not determined by how expensive it costs but rather its functionality and the general design. Most ozone generators typically have similar designs; a source that is either by ultraviolet or corona discharge, a fan that blows the gases of the unit housing and a unit cabinet that comes with an on and off switch and a power cord.

When selecting a generator, be sure to know the amount of ozone the unit is set to deliver. If you note that the manufacturer does not list the output level, then the chances are that the unit’s output levels are low. Look for zone generators with a high output.

To help you identify an ozone generator that can help you in your quest of protecting your grow room, below are 8 of the best ozone generators you can find in the market today.

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The Best Ozone Generators in the Market Today

Enerzen Commercial Ozone Generator

The Enerzen Ozone Generator is for use in commercial places. The unit gets rid of marijuana odor through oxidization making it one of the best ozone generator. The Enerzen Commercial Ozone Generator can deliver up to 4500 mg per hour and can cover an area measuring 4000 square feet. The generator is compact and easy to carry around. It comes with an eco-friendly design that saves on cost by having a low energy intake. It does not have any filters or purifiers that need cleaning making it easy to maintain. It comes with a timer that allows you to regulate the time for purification hence saving on energy.


  1. The unit is eco-friendly.
  2. It is compact and portable.
  3. It has a low maintenance cost.
  4. It comes with a time control feature.


It leaves behind an ozone smell.


The Enerzen Commercial Ozone Generator is best suited for anyone looking to save time and money. It destroys all pathogenic substances in the air and can control and get rid of mold. The generator is durable due to its grade steel casing.

Airthereal MA5000 Commercial Ozone Generator

The MA5000 Commercial Ozone Generator is a device made by Airthereal a company established in 2017 that works to improve the quality of air indoors. The unit provides clean air as well as an ethereal ambiance to a user. It deodorizes and sterilizes any space getting rid of any bacteria, mold, odor or viruses. It produces 5000 mg per hour of ozone with the ability to handle an area bigger than 1000 square feet. The machine is reasonably affordable and consumes low power of 50 watts when running continuously for 20 hours. It comes with a timer that can be set up to 120 minutes with the timing mode being in the clockwise rotation and the hold mode in the anticlockwise. The generator has a replaceable ceramic ozone plate and comes with a three-year warranty.


  1. It helps to eliminate any odor.
  2. It kills all the bacteria and viruses in the air.
  3. It consumes a low amount of energy.
  4. It comes with a timer
  5. It is portable.


It is not very useful for eliminating dust and other particles.


The Airthereal MA5000 Commercial Ozone Generator makes an excellent buy if you are looking for a machine with a balanced set of features. It has an aluminum alloy external casing and comes in three different colors.

Mammoth Commercial Ozone Generator

The Mammoth Commercial Ozone Generator is a heavy-duty device with a compact design. The generator works as an air purifier and ionizer to break down the molecular structure of any odors, pollutants, bacteria, and viruses. It can provide 3500 mg per hour of ozone with the ability to operate for approximately 6000 hours before inspecting and performing a replacement of the ozone plate. The device comes with an ergonomic handle that allows you to carry it anywhere you want to. It is lightweight and compact hence does not take up much space during storage. It comes with a timer function that has the hold settings making the control of ozone production more comfortable to manage. It contains internal parts made of metal that guarantee a lengthy lifespan for the generator. It comes with a factory warranty of 1 year.


  1. It is compact and portable.
  2. It is quite affordable.
  3. The Plate is replaceable and cheap.
  4. It comes with a timer.


It comes with a short warranty.

OdorStop Professional Grade Ozone Generator

The OdorStop Professional Grade Ozone Generator OS2500 is best for use in medium-size, and large grow areas. The generator gets rid of odor brought about by mildew, mold, and marijuana. You can service and change the metal plates of the generator since with time they accumulate contaminants and reduce the effectiveness of the generator. You can clean the plates without necessarily taking apart the unit hence saving some money as well as extend the working of the generator to 10 plus years. It comes with an easy to clean inner air inlet filter. For safety precautions, it is best to use the generator after leaving the grow room.


  1. It comes with an inlet air filter.
  2. It has easy to clean replaceable parts.
  3. It eliminates cannabis odor.
  4. It has a five-year warranty, and 30-day money back guarantee.


You can only use it in in a grow room after when everyone is out.


The OdorStop Professional Grade Ozone Generator is best for use in a commercial cannabis indoor farm set up. It makes use of the UV light to sanitize rooms for the growth of medical marijuana.

Alpine Air Commercial Ozone Generator

The Alpine Air Commercial Ozone Generator is ozone air purifier that sanitizes a grow room by breaking down the pollutants, micro-organisms, and marijuana odor. The generator can provide 4000 mg per hour of ozone for 6000 hours without having to change the filter. After 6000 hours of use, you can replace the ozone plate with a ceramic plate. The generator has a compact design and is portable. It is a fantastic option for bigger grow tents and commercial indoor cannabis farms. It comes with a patent-pending quick access slot that allows you to remove the plate for easy cleaning and replacement. It has a 120-minute timer that helps with regulating the working time of the generator. The ozone generator comes with a one-year replacement warranty.


  1. It comes with a timer
  2. It helps to eliminate any odor.
  3. It kills all the bacteria and viruses in the air.
  4. It allows the cleaning and replacement of the plate.


It has a short warranty period.


The Alpine Air Commercial Ozone Generator helps to defend against impurities, contaminants, and bacteria hence reducing the growth of diseases on your cannabis plants.

A2Z Ozone Aqua-6 Multi-Purpose Ozone Generator

The A2Z Ozone Aqua-6 Multi-Purpose Ozone Generator is a multipurpose unit that can provide ozone benefits for both water and air purposes. It oxidizes airborne odors and also gets rid of contaminants in the water. When in use on water, ozone is highly effective than bleach making it the second most potent oxidant after fluorine. The generator makes uses of corona discharge to produce ozone which when it gets to the air it kills the bacteria and prevents the growth of molds. It produces up to 600 mg per hour of ozone. It comes with a timer that has 15 different settings for different applications. The generator is light and portable and can be mounted on a wall.


  1. It is lightweight and portable.
  2. It is cost-friendly.
  3. It is easy to install and use.


You have to wait sometime after using the generator.


The A2Z Ozone Aqua-6 Multi-Purpose Ozone Generator is a good option for purifying you cannabis garden water. When using to air a grow tent, it is best to give it 30 minutes before opening and entering the tent.

New Comfort Stainless Steel 7000 mg/h Commercial Ozone Generator

The New Comfort Stainless Steel Ozone Generator is made for use commercially. It is of high quality material that is resistant to ozone. It is lightweight and compact making it easily portable. It is best not to use the generator in the presence of other people. The generator can produce 7000mg per hour making it ideal for use in both large and small grow rooms. The ozone generator gets rid of mold and can remove the marijuana odor from numerous items that Include clothes, and leather. The generator can cover an area of 6000 square feet. It conserves energy by consuming only 10 watts.


  1. It helps in cleaning up the air.
  2. It is compact and portable.
  3. It has a timer.
  4. It conserves energy.


You can only use it in an empty grow room.


The New Comfort Stainless Steel 7000 mg/h Commercial Ozone Generator has the most potent effects on odor. It is one of the best ozone generators that you can control the amount of ozone it generates per hour.

CleanAir Industrial Ozone Generator

The CleanAir Industrial Ozone Generator is a heavy duty sanitizer that helps with producing ozone for use commercially. The generator comes with a compact design that facilitates its portability. It works by breaking down contaminators such as marijuana odor and preventing the growth of mold. You can use it in a grow room or any indoor planting area. It comes with a 12-hour timer that incorporates a hold feature.


  1. It is easy to clean.
  2. It is portable.
  3. It is potent.
  4. It kills micro-organisms in the air and prevents mold formation.


Has to be used in an empty environment.


The CleanAir Industrial Ozone Generator is best for users looking to get rid of the tough marijuana odors. It comes with a lifetime ozone plate warranty and a two-year warranty that covers its parts.

Frequently Asked Questions

How long should you operate an ozone generator?

If you are using an ozone generator in a grow tent, the tent size determines the time you should use the machine. You, however, should not exceed more than 6 hours since that will do more harm than help. You should not be present in the grow tent when the ozone generator is functioning.

What happens when you inhale ozone?

Ozone is very harmful to the body. Small amounts of it can lead up to coughing, having short breaths and throat irritation. When you inhale large amounts of it, you may end up damaging your lungs or having other harmful respiratory effects.


When you want to get rid of marijuana odor, ozone generators are the most powerful and cost-effective solutions. However, when choosing an ozone generator, refrain from selecting a generator based on the power it produces but focus instead on choosing one that suits your needs. It is crucial that you understand how to use one before trying it out to protect yourself from any adverse effects. Ozone generators are safe to use when run by professionals or well-trained personnel.

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Bowden draws from over a decade of home growing experience as well as consulting for small-scale and hobbyist-level growers. He has written hundreds of articles, thought pieces, and tutorials about growing cannabis at home

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