You’re going to have a false sense of security that you don’t need to quarantine because you’ve only spent 14 minutes with the person.
Eli Perencevich, an infectious-disease expert at the University of Iowa, speaking of some Iowa school districts’ decision to have students move around the classroom every 12-14 minutes to reduce the amount of consecutive time spent next to classmates to minimize the spread of COVID-19. The Iowa Department of Public Health guidelines say that only people who have been exposed for 15 minutes and within 6 feet need to quarantine. (Iowa Starting Line — September 9, 2020)