FIELD: ventilation.
SUBSTANCE: invention relates to an impeller for ventilation ducts formed by a centrifugal blower having a scroll housing (1) equipped with side air intake holes (2) and a bell mouth (3) for air outlet in a perpendicular direction, lines (4) connected to the side holes (2) extend into the common hole 5 for direct connection to the ventilation duct portion (6).
EFFECT: improved indoor air quality.
3 cl, 4 dwg
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