Premium Quality Duct Mounted In-Line Extractor Fans | Blauberg UK

A complete and comprehensive range of ducted ventilation products tailored to allow the accurate selection of inline fans.

From domestic ventilation requirements in bathrooms and toilets to commercial applications with more complicated requirements, we have inline extract and supply fans to suit all.

To meet the ever more stringent energy efficiency regulations we also have in-line fans with extremely efficient EC motors.

Don’t forget to look at our new ISO-MIX low noise acoustically lined inline fans with very low sound levels with AC or EC motors.

Fan choice and air circulation calculation

Before choosing a fan define its destination, necessary modifications and, what is important, the power (capacity) of the device.

If the fan is set in the bathroom or lavatory, it is quite possible that you will need a timer that makes the fan operate and turns it off automatically even after you have left the room. Humidity sensor will turn the fan on when the level of moisture exceeds the set one. For kitchen or other premises you can use a fan with pull-cord switch for short-term air extraction.

1. Diameter of the flange that can be installed into your ventilation shaft – 100, 125 or 150 mm.
2. Volume of the room and air exchange per hour.

Along with the above mentioned, the following should be taken into consideration when choosing a fan:

In order to calculate the volume of the room, use a simple formula please: Volume (cub.m.)=length*height*width (m).

For different premises there are different norms for air exchange. Some of them can be found below.