Jeffco Public Schools

Spring 2020 - Spring 2021

• Used 100% outside air to condition our spaces whenever possible, as we have historically done.
• Doubled or significantly increased the amount of fresh air provided on winter and summer days when we could not use 100% outside air (starting March 2020).
• Ran building fans one hour before school start and ½ hour after finish to flush the buildings (March 2020)
• Increased HVAC filter efficiencies from MERV 8 to MERV 10 or 11 (higher filter efficiencies are detrimental to systems not designed for them) (starting Spring 2020).
• Checked the CO2 levels in classrooms in every school in the district to ensure proper indoor air quality (Upon student return in April 2021).
• Researched and eliminated many air disinfection systems based on potential danger or poor value to the district including in-classroom HEPA systems (February 2020 - Ongoing).
• Piloted an Ultraviolet Air Disinfection system to ensure value to the district (December 2020 – March 2021).