Patent ID: 8529831

Claim:
A system for removing particulates and gaseous pollutants of an airflow comprising: a first filter for removing large suspended particles from said airflow to create a first filtered gas; a mixer chamber for mixing the first filtered gas with ozone gas to create an ozone-enriched first filtered gas; an ozone generator for providing said ozone gas to said mixer chamber; a second filter incorporating a single multi-functional TiO 2 -based coating; and a UV generator for generating UV in the presence at said second filter incorporating the TiO 2 -based coating, wherein the placement of the mixer chamber, the UV generator, and the TiO 2 -based coating is configured to expose the ozone-enriched first filtered gas to the simultaneous effects of the multi-functional TiO 2 -based coating and UV light generated by the UV generator, and wherein said UV generator is selected from UV lamp or UV LED to emit the UV light at a wavelength of 320 nm to 400 nm, and wherein said ozone and UV light act synergistically at said second filter in the presence of said multi-functional TiO 2 -based coating including a plurality of mesoporous structures which are in contact with said ozone-enriched first filtered gases in order to oxidize about 82% to about 84% of said gaseous pollutants into harmless gases within 5 minutes.