Question: What are the considerations for high-flow oxygen use?

Answer passage (source: CDC):
page_title: Personal Protective Equipment: Questions and Answers
section_headers: Respirators
My N95 respirator has an exhalation valve, is that okay?
section_content: An N95 respirator with an exhalation valve does provide the same level of
protection to the wearer as one that does not have a valve. The presence of an
exhalation valve reduces exhalation resistance, which makes it easier to
breathe (exhale). Some users feel that a respirator with an exhalation valve
keeps the face cooler and reduces moisture build up inside the facepiece.
However, respirators with exhalation valves should not be used in situations
where a sterile field must be maintained (e.g., during an invasive procedure
in an operating or procedure room) because the exhalation valve allows
unfiltered exhaled air to escape into the sterile field.

Reviewer feedback on this answer:
Discusses N95 respirators. Doesn't mention high-flow oxygen use. Is off-topic.
This answer seems like it is relevant, but there is no mention of high flow oxygen in the passage.

Reviewer ratings:
Bad
Could be Improved

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:
Talks about using masks and respirators during labor. Doesn't mention high-flow oxygen.
The information seems useful and relevant, but the question is not answered.  There is no mention of the term high flow oxygen.

Reviewer ratings:
Bad
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:
Addresses the use of high-flow oxygen during the pandemic.
High flow oxygen is mentioned in this answer, but the term really isn't explained.

Reviewer ratings:
Excellent
Acceptable