This Washington State Department of Health guide provides recommendations for schools and buildings on how to maintain healthy indoor air quality during wildfire smoke events. It advises closing windows and air intakes when outdoor air quality is hazardous, upgrading HVAC filters, and using portable HEPA air cleaners to reduce fine particles and gases from smoke. Building managers are also encouraged to monitor carbon dioxide and carbon monoxide levels indoors and take steps to flush out buildings during periods of improved outdoor air quality.Open full document
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This Washington State Department of Health document provides recommendations for schools and buildings with mechanical ventilation on how to improve indoor air quality during wildfire smoke events. It covers strategies for minimizing smoke infiltration, upgrading HVAC filters, monitoring CO2 and CO levels, and selecting portable air cleaners. The document also advises on proper installation and maintenance of air filtration equipment.