Ozone generators that are sold as air cleaners intentionally produce the gas ozone. Often the vendors of ozone generators make statements and distribute material that lead the public to believe that these devices are always safe and effective in controlling indoor air pollution.

Ozone is oxygen but in a different form. It contains three oxygen molecules and not two. The third molecule can detach and apply itself to other chemicals or substances. This ability to attach to other substances means the ozone is able to alter these substances. This is why ozone is generated and used for certain purposes