@cmdrmoto I'd still don't consider #UVC harmless for humans.

• It works well for surface desinfections and to sterilize objects that can't be chemically or heat/cold-treated.

• #SafetyDatasheets say it's unsafe for humans in the vicinity.

Regardless, her affordable & effective #PPE designs are really awesome, combining form, function and ingenuity whilst allowing the use of cheap COTS parts and using #3Dprinting sparingly to get like mountings and other parts done that most people can't fabricate cheaply due to lack of spechalized tooling...