Using Copper as a Respirator Filter (IMAGE) University of Pittsburgh Caption ExOne R&D Manager Kyle Myers, PhD, with a 3D printed porous copper filter, now in testing, that is reusable, sterilizable and sustainable, eliminating waste. The filter fits into a cartridge designed by Pitt, and it can be printed to fit a variety of medical needs. Credit ExOne Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.