Here are the latest specs on the Psyclone I:
Outlet pressure 20 psi
Flow 0 to 20 lpm
Purity per setting:
5 lpm-94% +/- 5%
10 lpm-94% +/- 5%
15 lpm-94% +/- 5%
20 lpm-90% +/- 5%
Psyclone II (air assisted):
Outlet pressure 20 psi
5 lpm-94% +/- 5%
10 lpm-94% +/- 5%
15 lpm-94% +/- 5%
20 lpm-94% +/- 5%
25 lpm-90% +/- 5%
30 lpm-85% +/- 5%
I & II tied together (Y'ed)
40 lpm-90% +/- 5%
50 lpm-90% +/- 5%
So there you have it. The +/- is depending on humidity, moisture, altitude ect..
jack