Warnings surface about new system to disinfect N95 masks

Hundreds of thousands of respirator masks to protect against coronavirus have been sent through a decontamination system that has triggered warnings from front-line workers and has so far cost the government more than $110 a mask. The system is made by Battelle Memorial Institute, a nonprofit research corporation that has built more than 50 mask-decontamination units after getting more than $400 million in federal government contracts.