ozone generators are usually combined with carbon filters to eliminate ALL odors. The trick is to get the right ozone generator for your space and to not exceed the recommended guidelines.

From what i understand, there are two types - UV (ultraviolet) and corona discharge. The UV type uses a special light to create the ozone whereas the corona discharge passes dried oxygen-containing gas through an electrical field. I think the problem with the CD (corona discharge) is this type creates nitric acid and over time can build up with detrimental effects on plants and equipment. Though many growers use them with apparently no ill effects.

Many growers put the ozone generator right into the exhaust duct work. This is great if you are exhausting to the outside. But if you are exhausting to inside your home and/or using the ozone generator in a room or closet, then you should make sure the generator does not exceed the recommended guidelines. Instructions come with most ozone generators to help set them up properly and safely.

Symptoms of exceeding recommended ozone guidelines include coughing and scratchy throat.

note: ion generators create negative ions (electrostatic-ally) which cling to odor causing molecules making them heavier than air so they fall to the ground. They do eliminate odors (kind of) but are not idea for any more than 2 or 3 plants.