Opportunity stared Marblehead mask maker in the face

MARBLEHEAD — In these uncertain times, Herb Yu wants to offer his customers a face mask for every occasion. 

As the founder and CEO of Bonrisu, a Marblehead-based face-mask company, Yu has spent the last five months navigating the COVID business world, managing to launch a successful venture that he says began simply as a way to help a couple of friends in need.