1. | Philips Air Cleaner AC4052/00 User Guide Philips Clean air system AC4052 Fresh air at home Always with 6 stage Clean Air System Fresh air 6 stage CleanAir System for fresh air 3 stage ElectroClean system charges and traps all particles Active oxygen sterilizes pollutants and rejuvenuates filter 2 stage FreshAir system efficiently removes gases and odours PHILIPS sense and simplicity |