"Bob La Londe" fired this volley in
:

What kind of spindle speed are you dealing with? I've seen lots of
simple 4 walls bolted together shields for mills, but most of them top
out at 5K or less. My 1HP router clocks at upto 35K. Its slowest
speed is 8K (roughly).

I've got a speeder-upper, too -- up to 12K. At that speed, it turns flood
into a kind of coarse mist, but it still doesn't get out into the room like
the fog from my 'true' mist coolant system.

LLoyd