1results about How to "Increase air speed" patented technology

The application discloses a ventilation cabinet, comprising a cabinet body, a make-up air system, an upper make-up air module, and an upper outer make-up air outlet arranged towards a partition passage on the top side of an inner cavity, wherein the upper outer make-up air outlet is not arranged to make up air from outside a window. The application can improve the air flow organization of the inner cavity and prevent leakage of pollutants of the ventilation cabinet.