Briefings Week InReview: February 12, 2021By: adminOn: 02/12/2021 10:54:57In: Week InReview Face masks go high-tech, but do you need one? Photo: F. Martin Ramin/WSJ, Illustration: Serge Bloch The Wall Street Journal tested a few ‘smart,' app-enabled masks to see if they're too much trouble — or a breath of tech air. — The Wall Street Journal Read entire Week InReview: February 12, 2021 Categories All categories Week InAdvance Week InReview 2020 Briefings 2019 Briefings 2018 Briefings 2017 Briefings 2016 Briefings 2015 Briefings 2014 Briefings Archive May 2022April 2022March 2022February 2022January 2022 ContributorsTim Lake Login