Burning Man Dust Masks
Dust Masks are extremely helpful at Burning Man. Many people do use bandanas instead of full blown dust masks, but these have the advantages of being sturdier, looking cooler, and being especially helpful to people with sensitive conditions like asthma. You can get a lot of different types - simple ones to very high end ones. When looking for Burning Man dust masks, I would recommend picking something in your price range that you think looks neat.