Greenwood Silent Fan With Run on Timer & Humidistat - SR100HTR CF190 They also benefit from the

They also benefit from the location of their installation

This basic model is controlled by a remote switch

Zehnder P/N  655 000 755

High Pressure Low Noise

The iCON eco 30SDTS has a 2 minute delayed start timer (for quick nightime bathroom visits) then an adjustable run-on timer of 2 - 45 minutes

Greenwood Silent Fan With Run on Timer & Humidistat - SR100HTR CF190 They also benefit from theThe SR100HTR is a 100mm or 4" silent bathroom extractor fan with a humidistat and a timer. Humidstat fans have a sensor in them. This detects moisture in the air. When a set humidity point is reached the fan will switch on. There are two types of sensor Traditional and Digital Intelligent. Traditional. These work by having a fixed humidity level which, when reached, the fan activates. Traditional humidistats work well but as natural levels of humidity