White Calm Design Low Noise Bathroom Extractor Fan Humidity 100mm Eco-Friendly Descripton - Stylish 100mm (4") designer bathroom, kitchen extractor fan finished with a brilliant white face cover. - An impressive 90 m3/hour extract airflow rate (25 l/s). Fitted with an anti back draft shutter. - German engineered design with anti vibration mounts ensures low noise, only 26 dBA sound level. - Choose the following control options: run on timer, pull cord, timer/pull cord Humidity Sensor options. - Fitted with a German motor and backed with a 5 year warranty. Key Specification Weight - 0.900000 Impeller Type - Mixed Flow Motor Type - AC Electrical Supply- 1 Phase 220/250 50/60Hz Please choose Size - 100mm Dia Maximum Airflow Rate (l/s) - 25 l/sec Maximum Airflow Rate (m3/h) -.