coronavirus April 23, 2020 4:45 pm

OC Doctor Explains How N95 Masks Could Be Reused During COVID-19 Emergency

The doctor worked with the engineer who invented the masks, finding health care workers can boil or steam them in a pinch until more masks are made. Carolyn Johnson reports for the NBC4 News at 4 p.m. on Thursday, April 23, 2020.

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