Just to update this thread, I bought one of those face shields like the one in the 1st picture; the Pyramex. I've had it a couple of days now and tried it out on two jobs using my string trimmer. I made sure that the shield was touching my chest so that I had full coverage. I'm getting stung in the face guys. I don't know what could possible be going through those tiny holes in the mesh, but it's something and it's moving pretty fast. The first 5 seconds of using the shield I tried it without safety glasses on. I immediately got hit in the eyelid. It's a good thing I decided to blink at that moment in time. The rest of time using the face shield was with my safety glasses in place. What I feel with the safety glasses in place is stuff hitting me in the cheeks, mouth and chin. I never got any of that when using my other shield with the clear plastic visor which is the one in the 2nd picture.
That one brand NoCry doesn't offer a shield with a mesh visor, otherwise I would have just ordered the visor since I already have the headgear.
By the way, the Pyramex has a 3 position front to back adjustment as well as a 3 postion tilt stop adjustment.
The NoCry does not have those two adjustments.