Kat Panchal hadn’t yet learned how to use her sewing machine when the pandemic started. But in March, on leave from her job as a flight attendant with American Airlines and cooped up alone in her Philadelphia apartment, the 34-year-old taught herself to sew. Soon, she was stitching masks and donating them to health care workers.With no sign of her job coming back anytime soon, Ms. Panchal — now furloughed — put her masks on Etsy, the online marketplace where crafters and artists around the globe sell handmade and vintage goods. Since April, she has sold more than 400 masks, raking …
