As we deal with increased heat and wildfire smoke, please remember to use these resources. It is particularly difficult as we rely on ventilation to reduce exposure to respiratory viruses. Hopefully buildings have moved to MERV 13 filters as much as possible and supplement with portable HEPA filters (no ozone or other additives) where necessary. See the DOH K-12 COVID-19 Requirements for Summer 2021 and the 2021-2022 School Year.

WSDOH:  Smoke from Fires

• Recommendations for wildfire smoke and COVID-19 during the 2021 wildfire season

What can schools do to protect students from smoke during wildfire smoke events:

• The Air Pollution and School Activities Guide (PDF), provides recommendations for recess, P.E., and athletic events and practices during smoky conditions.
  This guide is based on air quality categories used in the Washington Air Quality Advisory Map.    
• Follow the guidance for schools on keeping indoor air free of smoke:
  • Improving Ventilation and Indoor Air Quality during Wildfire Smoke Events (PDF) (For schools and commercial buildings)
  • Summary Guidance: School Closure, Children's Outdoor Activities Cancellation (PDF)

Updated resources from EPA and ASHRAE on preparing your buildings for wildfire smoke:  EPA:  Wildfires and Indoor Air Quality in Schools and Commercial Buildings

DOH: Hot Weather Safety

Nancy P. Bernard, MPH, REHS, CPSI

Program Manager, School Environmental Health and Safety/Indoor Air Quality

Environmental Public Health Division / Washington State Department of Health

Nancy.Bernard@doh.wa.gov /  www.doh.wa.gov/schoolenvironment

Ventilation and Air Quality for Reducing Transmission of COVID-19 (PDF)

Safe Cleaning and Disinfection Guidance for Public Spaces (PDF)