Philips GP710BLKX1, 22.9 m³/h, 55 dB, 23.3 oz (660 g), Black Philips GP710BLKX1. Product color: Black, Control type: Buttons, Wireless. Air purify rate: 22.9 m³/h, Filters out bacteria: 70%, Filters out viruses: 70%. Filtering capability: Cigarette smoke, Microbes, Viruses, Filter lifetime: 350 h. Noise level (medium speed): 50 dB, Noise level (high speed): 55 dB. Power: 3.5 W, Voltage: 12 V, Frequency: 50 Hz