Get one of these...

12-in-1 Headband - Bandana, Neck Gaiter, Balaclava, Helmet Liner, Mask & More. Constructed with High Performance Moisture Wicking Microfiber.

They block out the dust way better than a banana and are easy to pull down/up when drinking a beer. Get em wet to stay cool during the day. At night they can keep your a lil warmer.

These are solid but they come in a ton of patterns. A bunch of other brands make em too but I've only used these. Hope it helps. I might also look into getting a disposable nasal rinse.

Edit: also look up "padded sunglasses" or "motorcycle sunglasses". They also keep the dust out of the eyes better and they're super cheap on Amazon (put the yellow ones on when you're on drgz).