Voltas 1.4 Ton 3 Star Inverter Split AC (Copper, 173V JZJ, White) Silver ion filter is a highly efficient sterilising ion filter that kills more than 95 percent - 99 percent bacteria and prevents them from growing again.Note: Incase of any issue with the product, kindly contact_us on : [ 1800-266-4555 ] [ 1800-425-4555].