I have used a net when the bugs are bad.
face mask is nothing to concealment. the deer are going to see the uv enhanced colors farther away then theyd see your face. besides, theyll smell your breakfast, ciggarette, and vehicle exhaust long before then...
its kinda like the ruskies in the 80s designing the best most quite underwater hull design for an attack sub, and putting the nosiest propulsion system ever designed in it.