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Indoor air quality
Learn how to improve indoor air in homes, businesses, schools, and other places where people gather indoors. Healthy indoor spaces are key to reducing the spread of airborne diseases, including colds, flus, and COVID-19.
Indoor air guidance documents
Learn the three ways to improve indoor air and reduce the risk of spreading airborne diseases and ways to improve indoor air quality at home.
Strategies to improve indoor air quality
Learn about what causes poor indoor air quality, and how filtration and ventilation can help improve indoor air.
Technologies to improve indoor air quality
Learn about different technologies that can help improve indoor air quality, including ultraviolet germicidal irradiation (UVGI), high efficiency particulate air (HEPA) cleaners, and heating, ventilation, and air conditioning (HVAC) systems.
Tips for improving indoor air quality in specific facilities
Learn tips for how to improve indoor air quality in your facility, with specific tips for shared/congregate housing, schools/childcare settings, restaurants, and faith-based organizations.
Additional resources
Indoor air quality training module
- Indoor air quality safe practices (English, 4.7 MB)
- የቤት ውስጥ የአየር ጥራት አስተማማኝ ልምዶች (Amharic, 4.4 MB)
- 室内空气质量 安全做法 (Chinese, Simplified, 4.5 MB)
- 室內空氣質量 安全做法 (Chinese, Traditional, 7.6 MB)
- Pratiques sécuritaires pour la qualité de l’air intérieur (French, 4.7 MB)
- 실내공기질 안전한실천사항 (Korean, 3.6 MB)
- Tayada Hawada Gudaha Habdhaqannada Ammaankaa (Somali, 3.5 MB)
- Prácticas Seguras para Mejorar la Calidad del Aire en Interiores (Spanish, 3.3 MB)
- Matendo Salama ya Ubora wa Hewa ya Ndani ya Nyumba (Swahili, 4.3 MB)
- ተግባራት ንውሑስ ጽሬት አየር ውሽጢ ገዛ (Tigrinya, 4.4 MB)
- Chất Lượng Không Khí Trong Nhà Các Thực Hành An Toàn (Vietnamese, 3.5 MB)
General information
- Improving indoor air at home webinar - Information about improving indoor air at home from Public Health – Seattle & King County
- Indoor air quality - Resources on different sources of indoor air pollution from the Washington State Department of Health
- Indoor Air Quality- information about how to protect indoor air quality from the Environmental Protection Agency (EPA)
- Indoor Air Quality Resources – trainings, publications, standards and more about indoor air quality from the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE).
Ventilation in the workplace
- Indoor air quality webinar for workplaces - Using ventilation to keep customers and employees safe indoors from Public Health – Seattle & King County
- COVID-19 guidance on ventilation in the workplace - Tips to maintaining a safe and healthy workplace from the Washington State Department of Labor & Industries
- Ventilation in buildings guidance - Tools to improve ventilation in buildings from Centers for Disease Control and Prevention (CDC)
Indoor air and airborne illnesses
- Ventilation and air quality for reducing transmission of airborne illnesses- Practices for reducing airborne disease transmission indoors from the Washington State Department of Health
- Indoor air and coronavirus - Steps to reduce transmission of COVID-19 indoors from the Environmental Protection Agency (EPA)
Clean air campaigns
- US EPA Clean Air in Buildings Challenge - Principles and general actions to improve indoor air quality in buildings
- US Department of Energy’s Efficient and Healthy Schools Campaign - Recognition and technical assistance for school districts seeking to implement high-impact indoor air quality improvements
- Children’s Environmental Health Network’s Eco-Healthy Child Care Endorsement - Simple and free or low-cost environmentally friendly best practices for reducing children’s exposure to environmental hazards
- Commit2Care - Free resources for business to safeguard their employees