You can use compressed air to blow it out from the inside. Depending on where you ride you may be able to keep the original filter for a long, long time. What doesn't blow out easily is fine dust. So if most of what you get in the filter is coarse sand you can clean it pretty effectively. If you ride in central Louisiana/Mississippi/Alabama/Georgia and suck in that red clay, then you may not be able to clean it adequately at all.