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American Lung Association: "Healthy Air: Cockroaches," "Breathing Exercises," "Hypersensitivity Pneumonitis Symptoms, Causes and Risk Factors," "Healthy Air: Nitrogen Dioxide," "Healthy Air: Air Quality Index," "Healthy Air: Carpets." "Tips to Keep Your Lungs Healthy."
Breathe: "Your Lungs and Exercise."
CDC: "Smoking and COPD."
COPD.net: "Staying Hydrated."
EPA: "Nitrogen Dioxide's Impact on Indoor Air Quality."
Mayo Clinic: "Lung cancer."
National Heart, Lung, and Blood Institute: "Pulmonary Function Tests."
National Safety Council: "Test Your Home for Radon Gas Exposure."
Rush University Medical Center: "8 Tips for Healthy Lungs."
WHO Guidelines for Indoor Air Quality: Selected Pollutants: "Nitrogen Dioxide."
Reviewed by Minesh Khatri, MD on December 17, 2020
This tool does not provide medical advice. See additional information.
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