Question: Is high flow oxygen a aerosol generating procedure?

Answer passage (source: CDC):
page_title: Clinical Questions about COVID-19: Questions and Answers
section_headers: Obstetrical Care
Is forceful exhalation during the second stage of labor considered an aerosol-generating procedure for respirator prioritization during shortages?
section_content: Based on limited data, forceful exhalation during the second stage of labor
would not be expected to generate aerosols to the same extent as procedures
more commonly considered to be aerosol generating (such as bronchoscopy,
intubation, and open suctioning. Forceful exhalation during the second stage
of labor is not considered an aerosol-generating procedure for respirator
prioritization during shortages over procedures more likely to generate higher
concentrations of infectious respiratory aerosols.
When respirator supplies are restored, as with all clinical care activities
for patients with known or suspected COVID-19, HCP should use respirators (or
facemasks if a respirator is not available), eye protection, gloves, and gowns
during the second stage of labor, in addition to other personal protective
equipment that may be typically indicated for labor and delivery. For more
information please see: Healthcare Infection Prevention and Control
FAQs

Reviewer feedback on this answer:
Discusses the generation of aerosols but doesn't explicitly mention high-flow oxygen.
The question is explicitly about oxygen use and virus transmission but the answer only tangentially refers to that unspecifically. (it could be considered similar to intubation and other procedures but this should be noted in the answer)

Reviewer ratings:
Could be Improved
Could be Improved

Answer passage (source: CDC):
page_title: Clinical Questions about COVID-19: Questions and Answers
section_headers: Obstetrical Care
Is use of high-flow oxygen considered an aerosol-generating procedure for respirator prioritization during shortages?
section_content: Based on limited data, high-flow oxygen use is not considered an aerosol-
generating procedure for respirator prioritization during shortages over
procedures more likely to generate higher concentrations of infectious
respiratory aerosols (such as bronchoscopy, intubation, and open suctioning).
Patients with known or suspected COVID-19 should receive any interventions
they would normally receive as standard of care. When respirator supplies are
restored, as with all clinical care activities for patients with known or
suspected COVID-19, respirators (or facemasks if a respirator is not
available), eye protection, gloves, and gowns should be used by HCP for the
care of pregnant patients with known or suspected COVID-19. For more
information please see: Healthcare Infection Prevention and Control
FAQs

Reviewer feedback on this answer:
Explicitly addresses whether high-flow oxygen generates aerosols.
The answer provides detailed information about O2 use and necessary interventions as well as links.

Reviewer ratings:
Excellent
Excellent

Answer passage (source: CDC):
page_title: Frequently Asked Questions about Biosafety and COVID-19
section_headers: Specimen Handling
What procedures can generate aerosols and droplets?
section_content: Many routine laboratory procedures can potentially generate aerosols and
droplets that are often undetectable. The following laboratory procedures have
been associated with the generation of infectious aerosols and droplets:
centrifugation, pipetting, vortexing, mixing, shaking, sonicating, removing
caps, decanting liquids, preparing smears, flaming slides, aliquoting and
loading specimens, loading syringes, manipulating needles, syringes or sharps,
aspirating and transferring blood and body fluids, subculturing blood culture
bottles, spilling specimens, and cleaning up spills.
For additional information, refer to the following:

Guidelines for Safe Work Practices in Human and Animal Medical Diagnostic Laboratoriespdf iconpdf icon
Biosafety in Microbiological and Biomedical Laboratories, 5th Ed.
Laboratory biosafety guidance related to the novel coronavirus (2019-nCoV)pdf iconexternal icon


Reviewer feedback on this answer:
Provides a detailed list of what laboratory procedures can create aerosols and links to even more detailed information, but doesn't explicitly mention high-flow oxygen.
Question is about high flow oxygen which is not mentioned at all in the answer.

Reviewer ratings:
Acceptable
Bad