... area: 33-40 m2 Electronic Home using HEPA filter Air Purifier,air refreshing, sterilizerSpecification:Model: AC-2104Power:39/46/56WVoltage, ... air volume adjustment7,Degerming rate: 99.6%/2H8.Removing VOC rate: 92%/10H9.Noise:43/48/56D10,Time setting11,Anion generator ... increase the purifying function. HEPA Air purifier with negative ionizer