UV Mask Sterilizer

At the beginning of the pandemic, my father (who is a doctor) and his colleagues were placing used medical masks in paper bags and leaving them in a dry room for two days before reusing them. After the University of Nebraska published a study suggesting that UV light could be used to sterilize N95 Masks without damaging them, my father asked me if I could replicate the system quickly. The resulting device was constructed from a duct from Home Depot and two UVC fluorescent lamps from McMaster-Carr, and it would deliver the required dose to the mask in 7 seconds. The device is currently at my father's office, and I will add images if I can retrieve it after the pandemic.