. Telescopic cooker hoods extend when in use and slide neatly away when not in operation. Extra silent. Maximal extractor performance with very minimal noiseKeeping a clean home can be tricky but keeping it quiet can sometimes feel impossible. Not anymore. Designed with an electronically operated engine and noise reduction features Bosch\'s hoods whisper quietly for peace of mind at home. Grease Filter. Bosch\'s grease filter creates a consistently fresh ambience before during and after cookingDucted and recirculation hoods require metal grease filters to filter grease and other solid particles out of the extracted air. To keep these filters operating at maximum efficiency clean them about once a month either by hand or in the dishwasher. EcoSilence Drive. Enjoy supremely quiet operation and excellent durabilityFeature IconSometimes you don’t even get to enjoy the sizzling sound of the pan because the cooker hood is too loud. Driven by a permanent magnet the EcoSilence Drive™ motor generates no mechanical friction thus operating at 0% power loss. This means that it’s extremely efficient robust and durable. Because it uses a high-performance blower with EcoSilence Drive™ motor technology you save energy without sacrificing performance. In addition it’s also very quiet. You can really hear the difference. High extraction rate. The optimum air volume for kitchens of all sizesNo matter whether you have an open-plan kitchen and living-room or a small closed-off kitchen. We offer the optimum air volume for kitchens of all sizes. Air should be exchanged 6 to 12 times an hour to ensure a consistently pleasant ambience. To do so the air delivery volume or power of the cooker hood must be appropriate to the room volume. Metal grease filterDucted and recirculation hoods require metal grease filters to filter grease and other solid particles out of the extracted air. To keep these filters operating at maximum efficiency clean them about once a month either by hand or in the dishwasher. Key Features . Extra quiet maximum extractor performance with minimal noiseGrease filtration level filters out over 85% of the grease from kitchen airEcoSilence Drive Bosch\'s highly efficient motor saves on energy not on performanceLED Illumination The energy-saving lighting provides bright and clear lighting for the hob areaIntensive speed setting removes strong kitchen odours quickly and effectively2 year warranty for peace of mindDimensions (mm) H426 x W898 x D290. .