Air filtration when surrounded by winds and dirt?

Not aware of an accepted study that shows such airborne dirt is significantly harmful to human health. On the other hand, dust on everything else can be problematic. Perhaps an efficient air cleaner, running while the sun shines, is a worthwhile endeavor. Looking for options.
I used to buy large Honeywell filters. They had a large round paper filter surrounded by a carbon mesh filter. Each successive Honeywell had a shorter life than the model it succeeded. So I gave up on the project after 4-5 Honeywell's had bit the dust. The MBA/Economics myopic dash to improved short time profits reared its ugly head so many times that millions of consumers eventually hung their heads in despair and abandoned the project to prop up domestic manufacturing. But I digress - because that is what I do.
The local winds built the world famous Great Sand Dunes National Park. They are pretty inspiring due to their immense size and mountainous background. Those same winds pick up tons of fine dirt that manages to find its way into local homes. Sometimes visibility is limited by these dust storms. But enough of the background.
Have folks found a good off grid filtration system? By off grid - meaning that it economically helps out in spite of somewhat limited hours.
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We do sometimes let the air in but never when it is windy, dusty, smokey, or nasty. The default is closed. Good cooking ventilation by fans. Dusting the home, burning firewood is cut in half by a split. If I want to smell the sweet smell of pine trees, I go outside.
Look at how Hospitals do this with MERV rated filters. They even slow down the air in carbon and zap it with UV to kill most anything.
A mini split is about the best thing we have ever paid money for. About....
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If your place is not well sealed, you are not going to get there.
People like to say how messed up such and such a state is. I remind them that if you love where you live, it really does not matter about politics and such.
Sounds like you need to move! Have a good day man!
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Thanks - exactly what I was looking for.