This is a replacement cell for the BLS12K and MCI22K air purification equipment.  This is a PCO Cell with MCI but has NO OZONE.

NOTE: No exchange or return on parts sold for used machines. To facilitate a proper repair of your air purifier or insure that the proper part is being installed in your machine, please contact BLS Service Center at 855.855.6070 where you may evaluate the advantages of the BLS Enhanced Warranty and have your product properly serviced.