Several hospitals have made room-sized UV facilities to sanitize N95 masks. Example:
https://news.vumc.org/2020/04/09/vumc-groups-unite-to-sanitize-n95-masks-with-ultraviolet-light/ The masks are not supposed to be reused, but because of shortages they have been. Nurses and doctors are also covering the masks with washable cotton outer masks, which they change between patients. Many people have volunteered to sew the masks, including my wife, who has dragooned me into tracing patterns and cutting threads. https://www.sewingmasksforatlantahospitals.com/ - Jed
