I bought this Detroit police super seer riot motorcycle helmet with face shield to protect my face when turning unstable or large pieces of wood.  I did this based on Lynne Yamaguchi's recent articile on the American Woodturner entitled "Safety Matters".  Lynne has damaged all of the bones in the left side of her face and had four titanium plates installed to reconstruct her face.  Her iris ruptured and and her pupil is permanently blown resulting in no central vision in her left eye.  She took off her face mask to answer a telephone and resumed wood turning without it on.