3 layers carbon filter purify any pollutants even 2.5㎛(PM2.5) of ultrafine dust in the vehicle....
3 layers carbon filter purify any pollutants even 2.5㎛(PM2.5) of ultrafine dust in the vehicle. Korea government research organization(KITECH) reported that CADR (Clean Air Delivery Rate) of IROAD iAir was 99.81% inside of vehicle