September 1, 2020 10:42 am Tech Tuesday: ‘PuriCare' Wearable Air Purifier Mike Proulx, advertising lecturer at Boston University, talks about Puricare, a wearable air purifier created by LG. US & World Videos 2:30 Police shoot and kill armed man in Raynham, authorities say 1:58 Bruins fans disappointed by overtime loss in Game 5 2:02 Protesters at local campuses look on as dozens detained at Columbia 20:20 Karen Read murder trial: What we've gleaned from police testimony 7:01 How reclassifying cannabis will affect the Mass. marijuana business