The TURBO-E 100 T is a powerful 4"/100mm mixed flow inline extractor fan with a timer that can be set to run on for a preselected time period. It's suitable for a wide range of flexible ducted applications with volume extraction and low noise considerations. The fan can be set to overrun for a time period from 2 minutes to 30 minutes so that it continues to clear the air for a period after the remote switch has been turned off. This is useful for continuing to clear air from rooms which build up a lot of steam/moisture. Installation: The fan is installed either in loft or ceiling space and is perfect for extraction and ventilation in busy bathrooms, wet rooms and shower rooms or ensues.