The fan blows these charged particles into the room and they collect on walls and room surfaces. The fan and pre-filter should reduce soiling and staining from the particles. Ozone generation is a type of air cleaner that uses a high-voltage electrical charge to change oxygen to ozone. High concentrations of ozone can destroy gas molecules and some microorganisms, such as mold spores. The North Carolina Department of Environmental, Health, and Natural Resources recommends that this type of cleaner NOT be used.
Ozone can have adverse health effects.
This tells you the cubic feet the unit delivers each minute. Usually the CADR will show specifications for removing dust, pollen, and smoke. When two units have the same CADR, the one with the lower total air flow will be more efficient. Maintenance You may have to change or clean filters. With the electrostatic precipitator, you'll need to wash the electronic cell every two to three months.