How much airflow needed for mist cooling setup???

[Voicecoil]

I have done the same type of setup as boyan with the filter housing etc. Im running it at 15psi with thin cutting oil and that works well. I have an 8cfm compressor with 100 litre tank that keeps up fine. The thinner the cooling medium the less pressure you will need to move it.

Thanks for that John, v.useful. 8cfm is not a lot, I won't need to use the big (and noisy) machine for that