House dust is mostly made up of human skin

the verdict

REFUTED

the evidence says no

Recorded sources

0 sources for · 3 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

House dust contains a mix of fibers, pollen, soil, and other materials, with dead skin cells typically accounting for only 20 to 50 percent of its composition, meaning it is not mostly skin.

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Judged against fact-checker rulings and reference works: claims of this kind are settled by the fact-checking record, not journal abstracts.

Evidence against · 3

Wikipedia: Dust

Recorded source metadata

Wikipedia: Dust. Wikipedia. https://en.wikipedia.org/wiki/Dust

Reference article covering this claim directly

Source citation format

2 recorded entries grouped as this source

Additional records of the same source are shown below. They are not counted as additional sources.

en.wikipedia.org: Dust

Recorded source metadata

en.wikipedia.org: Dust. en.wikipedia.org. https://en.wikipedia.org/wiki/Dust

It states domestic dust is composed of about 20–50% dead skin cells, refuting that it is mostly skin.

Source citation format

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More against · 2

pmc.ncbi.nlm.nih.gov: Dust, Unsettled - PMC - NIH

Recorded source metadata

pmc.ncbi.nlm.nih.gov: Dust, Unsettled - PMC - NIH. pmc.ncbi.nlm.nih.gov. https://pmc.ncbi.nlm.nih.gov/articles/PMC5269654/

It lists skin cells as just one component of a diverse mix comprising house dust, not the majority.

Source citation format

en.wikipedia.org: Dust

Recorded source metadata

en.wikipedia.org: Dust. en.wikipedia.org. https://en.wikipedia.org/wiki/House_dust

It confirms home dust is only about 20-50% dead skin cells alongside many other materials.

Source citation format

The paper trail · every fact has a biography

first checked01 Aug 2026

judged → REFUTED · 001 Aug 2026

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