Airflow 72684306 Centrifugal Humidity Timer Version, Two Speed, 100mm Extractor Fan

High Performance Ventilation – Dual-speed centrifugal fan delivers airflow up to 31 litres/second, perfect for effective ventilation in bathrooms, en-suites, toilets, and utility rooms. Intermittent Operation with Delay Start – Features two selectable speeds (17 & 31 l/s) with an optional 2-minute delay start, ideal for energy efficiency and comfort. Set via DIP switches during installation. Timer Overrun & Pull Cord Boost – Adjustable run-on timer (2–45 minutes) on switched live connection. Momentary pull cord override always boosts to full 31 l/s speed—quiet, smooth, and non-clicking. Automatic Humidity Control with Timer Overrun – Features an integrated humidity sensor that activates the fan when moisture levels rise, helping prevent mould and damp. Includes an adjustable overrun timer (2–45 minutes) for continued ventilation after humidity drops. Compact & Versatile Installation – Designed for surface or recessed mounting on walls or ceilings, in portrait or landscape orientation. Ideal for both new builds and refurbishments.