Answer / punit ghetiya

first we have to find velocity
then use this formula
Q=A*V
A=area in square feet,
V=velocity in feet/min.
Then put value in this formula.

Answer / ram pratap yadav

for cfm calculation
1)cfm=cmh/1.7

Answer / azmi abullais

Q=A*V
A=area in square feet,
V=velocity in feet/min.
Q=flow in cfm
but as we knw the thumb rule
90-110 sqft / tr we always taken

Answer / siva

Cfm*0.34

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