Tweet from Beth_Guay
RT @PennNETS: .@PennEngineers Professor Shu Yang has a leading role in an effort to design an effective face mask that can be made at home.… April 10, 2020, 11:31 pm
RT @PennNETS: .@PennEngineers Professor Shu Yang has a leading role in an effort to design an effective face mask that can be made at home.… April 10, 2020, 11:31 pm
