Steps to reproduce

 
In a tree (list) view, use a lot of column filters and full text search at the same time
 

Expected results

 
I can go quickly back to not filtering (default) view.
 

Workaround

 
I must manually delete content from all text filters and set comboboxes to "All/Any", clear full text search as well
 

Solution

Implement context menu in the grid/table header. Upon right mouse click show the option to reset filters.