FIELD: block is designed for inflow of exterior air.
SUBSTANCE: block is fulfilled in the shape of transparent openings in the exterior wall. The block has a chamber dividing openings in two parts. At that the chamber has partition with zigzag prominences turned to exterior surface of building and a tray manufactured of non-corrosive material with incline I=0.050 and connected with a tube turning off condensate, the block has also a pocket for installing electric heating arrangement and a damper.
EFFECT: reduces power inputs, penetration of dust and noise.
3 dwg
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