Window ventilator: how to ventilate an apartment without heat loss

Window ventilator helps air an apartment without losing heat and clears condensation, excess moisture and mould on PVC (metal-plastic) windows.

After wooden windows are replaced with PVC ones, a room becomes more airtight, so the need for regular airing is often overlooked — and that leads to stuffiness, condensation and mould.

What the video shows

• Why excess moisture and condensation appear after airtight windows are installed;


• How the ventilator supplies fresh air while retaining heat;


• That the device clears condensation, excess moisture and mould;


• That a ventilator can be added even to windows that are already installed.

Regular air exchange keeps a comfortable indoor climate and extends the service life of windows.