Asthma affects approximately 28 million people in the U.S., according to the Asthma and Allergy Foundation of America. The chronic condition causes inflammation in the airways that leads to the lungs, causing shortness of breath, chest tightness or pain, and wheezing. People with asthma can experience particular difficulty breathing when they simultaneously have respiratory infections like the common cold or the flu.
There is no cure for asthma, but people can manage the condition by taking medications and avoiding asthma triggers. With the latter goal in mind, some people may use air purifiers to help get rid of irritating pollutants that can set off their symptoms.
