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Refurbished A-3500 Ozone Generator

Refurbished A-3500 Ozone Generator

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Regular price $ 64.74 USD
Regular price $ 106.99 USD Sale price $ 64.74 USD
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The refurbished A-3500 Ozone Generator. Just place the unit in a room and turn it on for 30 minutes up to 4 hours. Use this ozone generator in unoccupied spaces.

Shipping Policy: Please see our Shipping Policy Page for details.

Click the link for our policy on shipping into California.

Special Features
  • 3500 mg/hour: The refurbished A-3500 is a powerful unit that utilizes corona discharge technology to safely and naturally produce ozone.
  • Ozone Plate Technology: One unique feature of an A2Z Ozone plate is that it can be shaved, which is the only one on the market capable of this. Simply shaving the plate in the unit can prolong its life.
How it Works

For any application, just place the unit in a room and turn it on for 30 minutes up to 4 hours. 

Please Note: In case of exposure, remove to fresh air. If inhaled, ozone can damage the lungs.

Please note: Keep away from natural gas, oil, gasoline, or other flammable chemicals as it could be an extreme fire hazard.

Parts Included
  • A-3500 ozone generator
  • A-3500 Operation Manual
  • Spare Fuse
Technical Specifications


220/240 or 110/120 VAC 50/60 Hz 


65 W

Ozone Output

3.5 Grams Per Hour


0-4 Hours

Air Flow Rate

442 M3/H


9.1 x 7.7 x 7.2 in
(203 x 195 x 181 mm)


7.5 lbs
(3.43 kg)


When operating an ozone generator, please remember to remove people, pets, and plants from the area. Do not breathe ozone directly. Ozone can cause lung damage. Be sure to leave the area immediately and only return once the ozone has dissipated. Under most conditions, the treated area will be safe to return to in 12-24 hours after the unit stops producing ozone. Ozone has a half-life of 30 minutes. Ventilate treated spaces or buildings prior to re-entry. Do not use around flammable substances, fuels, or solvents. Some chemical solvents react with ozone and create harmful substances. Do not ozonate a freshly painted room as it can have an adverse reaction with chemicals in the paint. Read the manual before operating the ozone generator.

NOTE: Because of the hazards with using air ozone generators, we no longer sell these to our residential customers. You must be an established business customer to purchase any of our A-Series ozone generators. We apologize for any inconvenience. We changed this policy to keep our customers safe. If you need to apply ozone, it is a good idea to contact a home remediation company in your local area. 

Please Note: We do not ship Air Ozone Generators to California. “Does not meet California air cleaner regulation requirements; cannot be shipped to California." There are three Air Ozone Generators on our site. They are the A-Series: A7K, A-3500, and A-7000. Please see our CARB policy for details about California shipments.


Refurbished units are tested in our facility by our head engineer and are rebuilt to operating order. In most cases, refurbished units are simply returned new units that were purchased in error or need very minor repair such as a new fuse or internal board. These items may have cosmetic flaws. All refurbished units include the manual and all accessories that are included with the original new product.

Call A2Z Ozone at 502-499-4977 between 8:00 am and 4:00 pm EST, Monday through Friday to troubleshoot if you have an issue with your refurbished unit. 

In Case of Accidental Leakage of Ozone, Keep the Ozone Generator in a Well-Ventilated Area.

Ozone Generators Emit Ozone. Do Not Inhale Ozone.

Ozone Generators generate high voltage.

Our ozone generators are designed and Distributed by A2Z Ozone, Inc. in Louisville, Kentucky USA.

EPA Est.: 95432-KY-1

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