The kit includes:
1x Fan TT 125 280m3/h
1x 125mm HY-FILTER 400m3/h
1x Ventilation duct 127mm, 1m
1x Plug with cord
TT 125 fan has two modes, one where it is rated at 220 m3/h and another with a power of 280 m3/h.
Sound level with 220 m3/h power: 29dBA
Sound level with 280 m3/h power: 36dBA
For an extra 400kr, you can replace the fan TT125 in this package for a fan TT125 with built-in digital fan controller.
To change the speed of the fan, just change the cord's position between L1 and L2.
The cord attached to the N will always be there and you should never have L1 connected at the same time as L2!