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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.
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Berkefeld filter

Summary

Berkefeld filter ranks in the top 2% of general entities by monthly Wikipedia readership (21 views/month).[1]

Key Facts

  • Berkefeld filter's Commons category is recorded as Berkefeld-Filter[2].
  • Berkefeld filter's Freebase ID is recorded as /m/047ckdl[3].
  • Berkefeld filter's Microsoft Academic ID is recorded as 2777813176[4].

Why It Matters

Berkefeld filter ranks in the top 2% of general entities by monthly Wikipedia readership (21 views/month).[1]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . wikidata.org.

Aggregate / graph-position facts

  1. [1] ↑ . Wikimedia Foundation. dumps.wikimedia.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Berkefeld filter. Retrieved April 10, 2026, from https://4ort.xyz/entity/berkefeld-filter
MLA “Berkefeld filter.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/berkefeld-filter.
BibTeX @misc{4ortxyz_berkefeld-filter_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Berkefeld filter}}, year = {2026}, url = {https://4ort.xyz/entity/berkefeld-filter}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Berkefeld filter — https://4ort.xyz/entity/berkefeld-filter (retrieved 2026-04-10)

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