Malik Peiris, co-director at HKU-Pasteur, and Leo Poon, School of Public Health of the University of Hong Kong, reported in a recent publication on the stability of SARS-CoV-2 in different environmental conditions.
They tested the infectivity of the virus after submitting it to different temperatures, and investigated its stability on different surfaces. They showed that after an incubation temperature of 70°C, the time for virus inactivation was 5 mins, or more surprinsingly, that a detectable level of infectious virus could still be present on the outer layer of a surgical mask after 7 days.
You can find the detailed outcomes online: Stability of SARS-CoV-2 in different environmental conditions
