Surviving Beijing fengsha: This woman has it right. Cover your whole head with a scarf.
Sandstorms or fengsha are common each spring in Beijing. Of the many things I learned while living there was how to survive the onslaught. The sand is so fine as to permeate every nook and cranny of your clothes, windows and food. The best thing to do is to get a fine scarf and wrap it around your head in order to protect your eyes. If you usually wear contact lenses switch to glasses. Clean and reclean everything. Try to keep your food air tight. Don’t worry, it will be over in about a month.
Air quality is something one personally cannot control. I suppose you could rent an oxygen tank and wear a medical mask 7/24 but realistically, few people could do this. Having lived in Beijing and have recently returned for a visit, the bottom line is that Beijing air is hazardous to all living beings in the area. For me it does not matter that the Chinese government says it’s Ok, and that there are places with worse air quality, some of them in China. All the proof you need will be provided by living in Beijing for only a couple of days.