BSD-T Series： BSD-T1, Outer Size(mm): 1380*1380*400, Diameter of Blade (mm): 1270, number of revolutions of blade (r/m): 427, Airflow(m3/h):44000, Noise(db):60, Power Consumption(KW):1.1, Power Supply (V):380, Weight(KGS):74; BSD-T2, Outer Size (mm): 1220*1220*400, Diameter of Blade (mm): 1110, number of revolutions of blade (r/m): 427, Airflow (m3/h):37000, Noise(db):56, Power Consumption (KW):0.75, Power Supply (V):380, Weight (KGS):54; BSD-T3, Outer Size (mm): 1060*1060*400, Diameter of Blade (mm): 950, number of revolutions of blade (r/m): 427, Airflow(m3/h):32000, Noise(db):52, Power Consumption (KW):0.55, Power Supply (V):380, Weight (KGS):42; BSD-T4, Outer Size(mm): 900*900*400, Diameter of Blade (mm): 790, number of revolutions of blade (r/m): 427, Airflow(m3/h):29500, Noise(db):48, Power Consumption (KW):0.37, Power Supply (V):380, Weight (KGS):36; BSD-T5, Outer Size(mm): 620*620*400, Diameter of Blade (mm): 500, number of revolutions of blade (r/m): 900, Airflow (m3/h):6000, Noise (db):40, Power Consumption (KW):0.15, Power Supply (V):220, Weight (KGS):23;