Window Acoustic Trickle Ventilator Invisivent EVO AK

Invisivent EVO AK is an acoustic version of the well-known Invisivent EVO, a discrete, self-regulating overframe ventilator. Invisivent EVO AK is nearly invisible from the outside due to it's installation on top of the window frame. This almost invisible installation guarantees maximum light penetration since the glass size is not reduced. Invisivent EVO AK always lines up perfectly with the window frame thanks to the easy click and slide assembly system.

Three different types of the Invisivent EVO AK are available: Invisivent EVO AK basic, Invisivent EVO AK high and Invisivent EVO AK extreme; each with a different airflow and different level of sound reduction. The need for an external sound reducing module is rendered unnecessary by the integration of the sound reducing material inside the middle PVC profile. This allows for an impeccable finish.

In closed position there is no visual difference between the Invisivent EVO AK and Invisivent EVO, so both models can be used in the same building.