Information from Stanford about re-using N95 masks. Sterilization. Released yesterday. [View all]

[58Sunliner]

https://stanfordmedicine.app.box.com/v/covid19-PPE-1-2

In this materials science study of N95 face masks, two disinfection methods which do not reduce the filtration efficiency of the meltblown layer after an appreciable number of treatment cycles were found:
•Method 1: 75°C Hot Air (158 degrees F), (30 mins) for 20 cycles
•Method 2: UV (254 nm, 8W, 30 min) for 10 cycles. Steam treatment causes filtration efficiency to drop to ~85% after 5 cycles, and ~80% after 10 cycles.

I use my dryer shelf insert and use an infrared temperature reader. Watch out for the metal clip coming off the nose bridge. I glued mine back on.