Highlights

• Air pollution is responsible for a wide variety of health problems and 4.2 million premature deaths annually and is a health risk even in “low” pollution areas.
• Air pollution exposures can be reduced by using portable room air purifiers, wearing face masks, recirculating automobile cabin air, using air conditioning, and by closing windows.
• Clinicians can determine appropriate interventions to reduce personal exposures by following the algorithm developed in Figure 3.