What is the ideal temperature and humidity level to prevent the spread of COVID-19?

At this time, there is no definitive research that identifies the ideal temperature and humidity percentage that would discourage the survival of COVID-19 in the indoor environment. Very few buildings located in our regional climate zone have the capability to control humidity through the HVAC system. In the absence of more definitive research on the efficacy of this approach, we do not recommend altering building temperature and humidity settings at this time.

Last Modified: 
April 23, 2021