I have used koolmist 77 since my machine was new 3+ years ago. I have sensitive skin/lungs and only feel it when I am doing lots of flood with flymilling that throws lots of mist up.
I can have issues with my lungs but the thing that helps us lots of mechanical ventilation. I have 2 500cfm fans above my machine that pull air from across my shop.
I like the water idea but will stay with koolmist
By the way, wear good quality gloves all the time.