Problem solving hat on here:
First a short story.
When we lived in Las Vegas we had huge Sandstorms a couple of times per year. The sand would come in under the bottom of the kitchen door and make miniature sand dunes on the floor. Mom used a damp towel rolled up to cover the bottom of the door.
I was in second grade there so when the sand storms blew in you could sit and hear the sand particles hit our papers.... tick tick tick tick .... all over the room. when that started happening they sent us kids home. I had a half a block to walk home.... school was at the end of the street. By the time I got home My mouth would have a dirt ring around it and I would have to wash my hair. The wind would blow so hard I had to lean into it to keep standing up.
We had AC in Las Vegas.... Standard buildings even the cheepo ones had them. 110-115 degree summers were the norm.
But Our cars didnt have AC.... So when we traveled we would hang wet towels over an open window IN the back seat area. It worked. Is there a way you could do something like that to allow the air through but stop the dust? Believe me I would rather live with the dust than be locked in a room with no air circulation.
Also Thin Muslin or a even a layer of 50 percent shade cloth draped over an open window would stop most of the particles and let them precipitate to the floor. Believe me I know this type of sand..... It is as fine as talc and gets into EVERYTHING. If you could put a damp towel on the floor so when it precipitates down It will stick and can be removed to be shaken out outside.
By the way some of our strategies in the desert during 1963, I am sure you know them This is also for others who wonder how to survive in very very hot desert climates.
1 Cover south facing windows with tinfoil. Just damp water and tinfoil squeegied on.... Tinfoil will stay till you remove it.
3 Air flow is important
4 Do Work things at night when its cooler
5 Swamp coolers are cheap and Work. But you have to have the windows open in the room you want cool
6 Wear Cotton and cover up..... Water evaporation in the form of sweat is a natural air conditioner.
7 Leafy green veggies are a natural supplier of electrolytes
8 Keep hydrated
I have other strategies but have to go
deb