My space has operable windows, should I use them?

Yes, operable windows should be opened whenever a space is occupied while maintaining comfortable indoor conditions. The use of windows is a highly effective way to improve ventilation within a space and is specifically recommended by the CDC and ASHRAE.

If windows are open, please close them when you leave for the day. If you are working in a laboratory or a space with special environmental conditions, windows should remain closed to avoid impact on space pressurization and other conditions.