i am sorry for late
okay
1. i have gap in tow doors ( 1 cm*0.90 cm)
2. gypsum board for selling is sealed
3. 4 led panel light (60*60) 48 watt
4. the important things i have safety cabinet in one room
5. the safety cabinet is class 2 type B2 that mean is Exhaust all air out side building...
PRESSURE ROOM
HOW TO CALCULATE PRESSURE ROOM IN PASCAL ??
i have ROOM SIZE : 4m * 4m * 3m (height)
how many cfm i need to make this room 1 pascal (positive pressure)
pls
[ponder]