# Berkefeld filter

> A modern brand of water filter based on the Berkefeld Filter, invented by the German engineer, Wilhelm Berkefeld in the early 20th century.

**Wikidata**: [Q4891953](https://www.wikidata.org/wiki/Q4891953)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Berkefeld_filter)  
**Source**: https://4ort.xyz/entity/berkefeld-filter