You can clear Category and Location filter values by using one of the following methods
  1. Clicking on red cross buttons present on the filters
  2. Deselecting values from filters
  3. Clicking on Clear button on tracker

After applying filters on assets, you put some conditions on assets according to which assets are filtered. To remove these filters you have to remove all the condition which you have applied at the time of filtration.

See how it works:filter_29062016.gif