Bosch Fan 1900 DH, Quiet & Powerful Bathroom Fan, 100mm

Quiet Operation: The Bosch Bathroom Fan operates at 28 dB(A), reducing moisture, odours, and mould quietly. It activates at your set moisture threshold, adjustable between 40% and 90%. It may sound louder in tiled bathrooms due to sound reflections With Humidity Sensor: This fan offers easy and convenient handling, as it activates at a set moisture threshold and has a 3 - 30 minute run-off time with an adjustable shut-off delay function Simply Efficient: This fan’s integrated check valve ensures effective ventilation by expelling exhaust air and blocking outside air. With a 75.4 m³/h airflow rate it guarantees fresh air Sleek Bosch Design: Featuring a sleek and timeless design, this fan enhances the aesthetics of any bathroom. It combines Bosch's signature style with functionality, complementing your bathroom decor effortlessly Easy to install: The bathroom fan supports both wall and ceiling installations and can be installed by one person using standard tools. Requires a 102 mm hole, fitted with a 100 mm duct