Most US households have an oven capable of 170F (76.6C) on the low setting. This can be used for sterilizing masks as an alternative to washing. Please provide any data that shows the length of time needed at 170F (76.6C ) to disable the Coronavirus19.
You may find some answers here https://www.who.int/csr/sars/survival_2003_05_04/en/?fbclid=IwAR0YqLv8b9pOH9Oc3It7I1YfBp9Q8l6HxOmRAEXsrpn28dBcvn8aWV01gkk
Coronavirus is very stable in frozen state and show survial up to 2 years at - 20°C. Conversely the virus is thermo labile meaning that it us susceptible at normal cooking temperature 70°C.It is therefore recommended to avoid raw milk, raw u cooked food etc.
These two articles may be relevant to your question regarding inactivating the Coronavirus SARS-CoV-2:
1. Article Solar ultraviolet radiation sensitivity of SARS-CoV-2
2. Preprint Rapid evidence summary on SARS-CoV-2 survivorship and disinf...