New recommendations for use of the PPE from the Infectious Diseases Society of America Guidelines on Infection Prevention for Healthcare Personnel Caring for Patients With Suspected or Known Coronavirus Disease 2019

Among these recommendations :

ROUTINE PATIENT CARE
In Conventional Settings
Recommendation 1: The IDSA guideline panel recommends
that HCP caring for patients with suspected or known COVID-
19 use either a surgical mask or N95 (or N99 or powered airpurifying
respirator) respirator as part of appropriate PPE.*
Strong recommendation, moderate certainty of evidence.

AEROSOL-GENERATING PROCEDURES
In Conventional Settings
Recommendation 5: The IDSA guideline panel recommends
that HCP involved with aerosol-generating procedures on suspected
or known COVID-19 patients use an N95 (or N99 or
powered air-purifying respirator) respirator instead of a surgical
mask as part of appropriate PPE.* Strong recommendation,
very low certainty of evidence. Comment: Despite the very
low-quality and indirect evidence supporting this recommendation,
the IDSA guideline panel placed a high value on avoiding
serious harms to exposed HCP.

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