I used a mister for a while, but would have fog banks in the shop after
a few hours of work. And then I'd be coughing for a few days, from
breathing the coolant mist, so I got a 3M filter mask. This worked,
even if it did make me look like a Preying Mantis (much to the wife's
amusement). But everything in the shop became coated.

So, I stopped using the mister and went to drip cooling, with option to
open the valve wide open to full flood. This works well. The flood is
essential when parting or trepanning.

My solution is a Zero fog mister:
http://www.machinistblog.com/?s=mister&submit=Search