Good insect repellent

I use the thing in a patio door, which is also possible when the dimensions 2xTürbreite + door height not exceed 4 meters.
The installation was plentiful fumbling, because the Velcro strips, which is supplied was too wide to attach it to the door perimeter.
So had to be laboriously cut with scissors.
If it is then installed only times it works quite well.

BUT: The negative pressure created in the room when the warm air is blown out from the air conditioner, MUST flow in from somewhere air.
She does definitely. But just imperceptibly through any cracks.
This may not prevent the HotAirStop.
Up is a principle related disadvantage of air handling units with one exhaust hose.

But it is effective against unwanted insects.
That was also the reason of purchase.