Matt, specs do fog up pretty badly when using the Vitrex and that is with a tash, so i would say that a beard would make matters worse.
Also IMHO the Vitrex is not much good at filtering dust. Whether this was because of my tash i cannot say for certain but i did not like it at all. Another problem is the elasticated straps, they are very uncomfortable and are forever getting tangled up.
As for the Airace, although i have not used one before i cannot see it being in the same league as the Airshield.
Do you know anyone who has one of these and would let you use it for the weekend? Or are there any members that live near him, who would let him try it out?
I know what you mean about not wearing hats, but i am sure once you had used one for a while you would find that they are very light and comfortable.
If you are really against buying the Airshield and are going to buy one of the 2 you mentioned, then i should have my old Vitrex hanging around the workshop somewhere and your welcome to that if you want it (no charge). This will at least help you choose between that and the Airace, and if you do decide to get the Airace you can pass it on to someone else.
If you do want it pm me with your details.
Regards
Woody