Our babysitter’s mom is a CRNA and was telling us that her hospital is using UV for mask sterilization. The one issue they have run across, at least with their method, is that it’s drying out the rubber bands on the masks. They are having bands break in the middle of surgeries, etc.
The peroxide steaming deal that Battelle came up with also effects the bands my wife said...not breaking but losing some of their elastic property and being loose. She said people hate using the cleaned masks but it's better than none I guess.