Briefings Week InReview: February 12, 2021By: adminOn: 02/12/2021 10:54:57In: 2021 Briefings 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 2024 Briefings 2023 Briefings 2022 Briefings 2021 Briefings 2020 Briefings 2019 Briefings 2018 Briefings 2017 Briefings 2016 Briefings 2015 Briefings 2014 Briefings Archive February 2025January 2025December 2024November 2024October 2024 ContributorsTim Lake Login