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21 CFR 878.4040

FDA regulations for surgical N95s
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21 CFR 878.4040

Summary

Key Facts

  • 21 CFR 878.4040's subclass of is recorded as Title 21 of the Code of Federal Regulations[1].
  • 21 CFR 878.4040's main subject is recorded as N95 respirator[2].
  • 21 CFR 878.4040's regulated by is recorded as United States Food and Drug Administration[3].

References

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

Direct Wikidata claims

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

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APA 4ort.xyz Knowledge Graph. (2026). 21 CFR 878.4040. Retrieved May 7, 2026, from https://4ort.xyz/entity/21-cfr-878-4040
MLA “21 CFR 878.4040.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/21-cfr-878-4040.
BibTeX @misc{4ortxyz_21-cfr-878-4040_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{21 CFR 878.4040}}, year = {2026}, url = {https://4ort.xyz/entity/21-cfr-878-4040}, note = {Accessed: 2026-05-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 21 CFR 878.4040 — https://4ort.xyz/entity/21-cfr-878-4040 (retrieved 2026-05-07)

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