Dimensions and technical data: 100-240 V ~ 50/60 Hz; Single-room ventilation unit with ceramic core for heat recovery; Housing color: white; Nominal pipe diameter: 160 mm; Power: 1.7 / 2.2 / 3.2 W; Current consumption: 0.03 / 0.04 / 0.05 A; Airflow in ventilation mode: 15 / 35 / 50 m³/h; Airflow in recovery mode: 8 / 15 / 25 m³/h; Sound pressure level Lp-3m: 11 / 18 / 21 dB(A); Sound pressure level Lp-1m: 20 / 27 / 30 dB(A); Medium temperature: -20°C to +40°C; Heat recovery efficiency: ≤ 88%; Protection rating: IP24; Protection class: II; Weight: 6 kg; Front panel: 250 x 250 mm External panel: 220 x 231 mm Telescopic tube: Ø 160 mm x 234 - 500 mm Wall cutout diameter: 180 mm Automatic closing flap Integrated humidity sensor Includes G3 filter Includes remote control and control panel on the unit: 3 speeds / off, night mode, natural ventilation, continuous ventilation, air supply, heat recovery Smart Home remote control via Vents Home App (Apple App Store, Google Play Store) Heat recovery mode: two cycles alternate every 70 seconds: Cycle I: Warm air is extracted from the room, the exhaust air is heated and humidifies the heat storage unit. Cycle II: Fresh outside air flows over the heat storage unit, extracting the stored heat and humidity until the room temperature is reached. Supplied without cable