Disclosed herein are examples of open mesh style monolith filters utilizing an ozone-depleting catalyst. In addition, pairing of an ozone depletion coated filter with electrostatic filter is disclosed herein such that the electrostatic filter is provided upstream of the ozone depletion coated filter so as to reduce the volume of particulates encountered by the ozone depletion coated filter and thus extending the useful life of the ozone depletion coated filter. In addition, pairing of the treated filter as well as the combined treated filter and electrostatically charged filter with an air ionizer is disclosed herein so as to further reduce particulates in the air stream, reduce chemical contaminants in the air stream, and provide a low pressure airflow through the filter. A method for making an economical ozone depletion filter that is energy efficient (with open mesh monolith structure) with high air cleaning efficiency at ambient temperature.
