"Fits all standard window constructions" and "Always open or close the window without dismantling the AirLock possible" closes actually content from, if you have seen the Airlock times. In my case, it fits only moderately. When I open the window, the strips dissolve on the hinge side of the window. The hose barely fits between the window and slit jaw, but this is certainly the peculiarities of my apartment owed. If not fixed, the windows in his position, tearing each gust of wind from the Airlock from window frames. In the best case, the adhesive strips are not glued together and can be reattached.
Fixed to the window, prevents the zipper ends together and checked whether the tape is still attached around, then you have the Airlock a good solution in order to transport heat from the appliance (air conditioner in my case) to the outside. As simple as presented ", use attachment, open Device window, close window" it is but then not. Because there is no reasonable alternative (other than the same type competing product), I forgive 3 stars for the idea and the basic functionality of the product.