I am trying to build my own laminar flow hood, but i have a little confusion regarding the pressure of the blower.
Actually my hepa filter is 35x35 cm.
airflow = width * height * air speed =
= 0,305 m * 0,305 m * 0,5 m/s =
= 0,0465125 m³/s * 3600= 167.445
Until here it is ok. So i will need (167.44 m³/h) blower, but the thing is how do i choose/ calculate the right Pa i will need?
how much pressure is necessary to transport 167,44 m³/h air through the HEPA Filter?
I have seen many filters with different Pa. I heared that 150 Pa is the right pressure on a 305*0.61 hepa filter size.
Thanks for the help...