 Using common database filters to refine your search. Library databases and discovery layers typically include tools called filters that help you refine your search so you can retrieve results that are more accurate and relevant to what you're looking for. In this video, you'll learn about some common filters. These filters appear in many databases, so you'll be prepared to search no matter what tool you use. When you select a filter, all search results that do not match that filter's criteria will be removed from your search results. Using filters can help you narrow your search results to the ones that are most relevant to your topic. Let's look at some commonly used filters and what they do. Full text. This can also be called things like available online or in your library. Select this filter to narrow your results to sources that you can view in their entirety, meaning the full text of the article. Pure reviewed. Select this filter to ensure that all your results are from pure reviewed journals. Date range slash publication date. This filter limits your search to material published within a particular timeframe, which can be useful if you need to make sure to find current information. This filter limits your search results to materials written in one or more languages. You can select all the languages that you can read. Age. This is a less general filter, but it is common in health sciences databases. This filter limits your search to articles about specific age-based populations, so infants, children, adolescents, etc. You now know some common filters that you can use to refine your search. Explore your library's discovery layer and databases to try these filters for yourself and see what other filters are available. Thanks for watching.