Science!
"..using UVGI and repurposing phototherapy devices could be the best practical solution at this time."
Fig 1
Image of prototype being developed by Daavlin. The field of irradiation is approximately 15 inches × 45 inches, and depending on the manufacturer of the mask, this would allow for the treatment of ∼18 to 27 masks (2 minutes per side). (A) With ultraviolet light on and (B) ultraviolet light off.
Reference:
J Am Acad Dermatol
. 2020 Jun;82(6):1511-1512. doi: 10.1016/j.jaad.2020.03.085. Epub 2020 Apr 1.
"Ultraviolet germicidal irradiation: Possible method for respirator disinfection to facilitate reuse..."