Ceiling extractor fan – extractor fan there are three types of commonly used at home and are all relatively easy to install. Perhaps the most common is a window fan is installed in a hole cut in a fixed pane of glass. This fan can be controlled by an integral switch, normally cable operated, or else by a wall-mounted, separate rocker switch. The installation does not involve structural work; just ask glazier to replace the panel with one in which a hole has been cut.
A ceiling extractor fan, controlled by the same switch, which is mounted in a hole made in the external walls or in ventilation air brick. This sort of fan takes a little longer to install, as the holes must be made in the external wall, however, by installing a wall fan in preference for window-mounted fan you avoid limiting the view from the window and the inconvenience of having to have the window closed permanently.
There is one other common type of fans ceiling extractor fan, but although the easiest to install and the cheapest to run no further costs after installation of this type is also the most effective. There are other, more specifically, the type of fan such as cooker hoods and extractor fans time to the bathroom or toilet that is a variation on the three main types already described.