An in line extractor fan is a fan housed in the ceiling void or loft, with ducting attached to each end, one leading to the room you wish to extract from, the other to an outside grille. They are more powerful than standard axial wall or ceiling fans, and can be ducted over greater distances. They are generally used when the room you wish to extract from has no direct access to an outside wall or you wish to duct through the roof. They also have the advantage of usually being quieter that wall / ceiling fans, as they are sound proofed by being housed outside of a room.

ACM Range
 - Quietest in line extractor fan on the market
 - Can be ducted up to 50m
 - Designed and manufactured in the UK
 - 2 speed selectable motor
 - Timer versions available
 - Removable motor core assembly
 - Rotating motor chassis assembly
 - Supplied complete for installation, just choose your ducting, duct clamps and grilles
 - IP44 rated
 - Aesthetically pleasing with wipe clean polymer

This fan can also be operated by humidistat by purchasing the VENT AXIA 563550A Humidistat & Timer below.

 - Vent Axia has designed a complete range of energy efficient mixed flow fans that are now quieter, and offer 2 1/2 times the pressure of conventional axial fans.
 - The ACM in line extractor fan range can be installed either vertically or horizontally. 
 - All ACM fans have a separate footplate for simple location mounting, and detachable spigots for simple connection to ducting. The motor body chassis now rotates to provide connection in acute spaces. Cleaning the product has also been made simpler as all parts can be removed without removing the ducting.
 - All non-timer model ACM fans can be controlled with the Electronic Speed Controller, W300310.
 - All motors are fitted with Standard Thermal Overload Protection (S.T.O.P), and are designed for temperatures up to +50°C. All sizes are Class II appliances. Supply voltage 220-240v/50Hz.

Useful Links
What items do I need to install an inline fan in my bathroom?
A Guide to Bathroom Zones
Glossary of Ventilation Terms