Coping with mud in the face
How do downhill riders cope with this?



With a front fender or with a mud guard such as this.
With goggles which use disposable tear off lenses or the ones with a reel of fresh len material which is pulled via a string or via bluetooth or something.



  Does the full-face helmet protect the mask in some way?


Probably not.


  Do they apply anti-water coating on the mask?


No


  Do they install some hardy front fender?


In really muddy conditions it's almost mandatory.


  Or do they just live with it?


Nobody likes mud in their eyes or mouth.