I recently got an RT PCR test done. The guy who came for home collection had n95 mask on and wore gloves while taking the sample. He also wore a face shield. My concern is that he didn't wear PPE kit and his face shield was an old one. What are the chances of me catching infection from face shield or his clothes? Asking since wind was blowing from his direction to mine and I feel if covid particles from his used face shield came and infected me.