Are there filters that need to be replaced?
There are no expensive filters to be replaced on Biozone® Air Purifiers. By comparison, HEPA filters can cost from $60 to $120 a year to replace. In Biozone® units, all that ever needs replacement is a special ultraviolet lamp that should be replaced annually, at a cost of approximately $36, depending upon unit size

• Can Biozone® Air Purifiers be run 24 hours a day?
• What kind of maintenance is involved on Biozone® Air Cleaners?
• Are there filters that need to be replaced?
• How expensive are the units to operate?
• Since Biozone® Air Purifiers do not rely on air filters, how do they clean the air?
• How effective are Biozone® Air Purifiers on tobacco or cigarette smoke?
• Will the unit remove smoke and other odors from clothing furniture?
• Do the units work to get rid of mold and mildew?
• Do these units produce nitric oxide?
• Are some people over-sensitive to ozone?
• How will a Biozone® Air Purifier work with other filtration or air cleaning devices I already use?
• Is there any research supporting the effectiveness of Biozone® Air Purifiers?
• How can I tell if the Biozone® Air Purifier is really working?
• How do I figure out what model is best for me?