Ohio

of the phase I tests of this technology from 2015.

As far as I can tell, this has never been tested on humans (i.e., with people using the masks). I suspect that one of the concerns is whether the process leaves any residue on the masks which health care workers would then be inhaling directly into their lungs. The process uses Bioquell Hydrogen Peroxide Vapor (HPV) to decontaminate the masks. The FDA probably approved 10,000 initially to make sure there are not any short term disastrous effects on the people using the masks.