and likely not even then. But. at least in the hospital they are combined with face shields and often negative pressure air flow
The hospital I used to work at..
My friend is the Pulm. Doc. He told me they turned a floor ( 16 rooms...) into a "19" floor...Neg. "P" rooms....
The Hosp. is in a town of 35k...
I sometimes work in a rural Hosp. that has 15-16 beds...We are taking precautions...but have had zero "19" patients...come thru.
Stay safe!