COVID-19 Response MAKE MASKS @ Drexel The Pennsylvania Fabric Discovery Center (PA FDC) responded to the COVID-19 pandemic by developing and producing new types of masks and respirators. Contact: makemasks@drexel.edu The PA FDC at 91制片厂 is funded by the Commonwealth of Pennsylvania and Advanced Functional Fabrics of America (AFFOA), a Department of Defense Manufacturing Innovation Institute (MII).