You can put on a pre-cleaner like on some tractors if your concerned about excessive dust.
<a href="http://www.smartmaintenance.com/product" target="_blank">http://www.smartmaintenance.com/product ... aners.html</a>
<a href="http://www.smartmaintenance.com/product" target="_blank">http://www.smartmaintenance.com/product ... aners.html</a>