Good for you on wearing PPE. I use the mesh screen and safety glasses, I also use foam ear plugs and the muffs on my hardhat. The screen keeps the pesky chips away. When running a saw, we wear stuff that protects us if something MIGHT happen; but the injury that happens EVERY TIME, that is INEVITABLE, is hearing loss--unless you protect it. And if you consider that muffs don't always fit exactly right, then the NRR (noise reduction rating) can be reduced. So, I wear the foam plugs--they even help to hear voices (sharp noises) over the constant noise around me. And no, the screen won't do anything to protect against kickback. I have a concept of "managing the forces" of kickback. First, don't put your head in line with the bar tip. Watch the tip to avoid contact with something that would kick it back. If you can't see the tip, stiff-arm the forward handle. Run the saw at WOT so if it contacts another limb, it would power through it. Keep the chain sharp. And--What does Santa Claus, the Easter Bunny, and an "anti-kickback chain" have in common? There's no such thing! Due to the physics, all chains will kick back, your preparedness is up to you.