Indoor Air Quality (IAQ) House
Not for profit online educational resource on indoor air quality
Indoor Air Quality

Indoor Air Quality - How lungs work (see background study on Particulate Matter)
Original Content Source: National Heart, Lung, and Blood Institute (as a part of the National Institutes of Health and the U.S. Department of Health and Human Services)
The animation below shows how the lungs work. Click the "start" button to play the animation. Written and spoken explanations are provided with each frame. Use the buttons in the lower right corner to pause, restart, or replay the animation, or use the scroll bar below the buttons to move through the frames. If you do not see the image you will need to download Adobe's free Flash Tool.


Visit the NHLBI How the lungs work |Copyright Notice - see works published by the US Government

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