FWIW:
Beware of any "air cleaner" that generates Ozone. Ozone or triatomic oxygen, is formed in an electrical charge jumps an air gap, ionizing the air in the gap, and forms a spark. It's the odor you notice after a thunderstorm, and the pungent odor you smell around an electrical spark.
Ozone is a potent pulmonary (lung) irritant, and the USEPA and the CPSC have forced several manufacturers of larger AC powered air cleaners that generate excessive Ozone to recall their devices, and going back a number of years, one manufacturer was ordered to change their whole marketing plan and remove many claims they had included in their promotional literature. While Ozone is good in the upper atmosphere, where it absorbs UV radiation (and there's a "hole" in the stratospheric Ozone layer over Antarctica), its not good at ground level.
FYI: In the workplace, OSHA regulates employee exposure to Ozone gas through its Air Contaminants Standard, 29 CFR 1910.1000. The permissible exposure limit (PEL) for Ozone is listed in Table Z-1 as an 8-hour, time-weighted average value of 0.1 part of ozone per million parts of air (ppm), or 0.2 milligrams of ozone per cubic meter of air (mg/m3). That's not a lot of Ozone. Ozone odor is generally detectable at concentrations of 0.02-0.05 ppm. (If you can smell it, there's a good chance there's too much!).
For comparison:
There are about 20 drops (from an eyedropper) in a ml.
There are 29.57 ml/ounce. therefore, a gallon has about 75,700 drops ((20*29.57)*128 ounces/gallon), and about 13.21 gallons would therefore be 1,000,000 drops. So to make a solution of 0.1 parts per million, you would add one drop to 132 gallons.
Finally, ozone is a strong oxidizer, and many materials, including rubber & some plastics deteriorate rapidly when exposed to Ozone.