Lijan Greentech is Manufacturer and Supplier of Turbo Roof Ventilator Fans. Wind Turbo Roof Ventilators Exhaust Hot & Humid Air from Inside Room and Helps Entry of Fresh Air From Outside. Number of Ventilators Required in a Building Depends on Space Volume, Condition of Inside Air and other Gases in the Building, Capacity of Ventilators etc. It is Very Important that Ventilators to be Installed Perpendicular to Floor Level for Smooth Running for Long Time.
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