From: Entrez Help
Entrez Help [Internet].
Bethesda (MD): National Center for Biotechnology Information (US); 2005-.
NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.
Figure 3.
A PubMed search results page with several facet filters selected: Review, Free full text, Publication date from 2015/01/01 to 2016/12/31, Humans. The results page reports in the line with the “I” icon the fact that the search was filtered with a link (Clear all) to clear the filters.