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To improve the quality of the incoming air and to feel less the draft:

Window ventilation anti pollens

The air is perfectly renewed, the air intake is larger than the opening on the window, therefore, the air is distributed over more surface and must pass through the filter, which eliminates the unpleasant sensation, it must even preheat slightly by mixing with the ambient air.

In addition, we block the pollens.

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Video Instruction: PollenTec Allergy Screen