Editing Respirator (section)

== Atmosphere-supplying respirators ==

These respirators do not purify the ambient air, but supply breathing gas from another source.  The three types are the self contained breathing apparatus, in which a compressed air cylinder is worn by the wearer; the supplied air respirators, where a hose supplies air from a stationary source; and combination supplied-air respirators, with an emergency backup tank.<ref name=":0">{{Cite web|url=https://www.osha.gov/SLTC/etools/respiratory/respirator_selection_airvsatmos_resp.html|title=Respirator Selection: Air-purifying vs. Atmosphere-supplying Respirators|website=U.S. Occupational Safety and Health Administration|access-date=2020-04-09|archive-date=17 April 2020|archive-url=https://web.archive.org/web/20200417114028/https://www.osha.gov/SLTC/etools/respiratory/respirator_selection_airvsatmos_resp.html|url-status=live}}</ref>

=== Self-contained breathing apparatus ===
{{excerpt|Self-contained breathing apparatus|only=paragraphs}}

=== Supplied air respirator ===
{{excerpt|Supplied-air respirator|only=paragraphs}}