“Is there anything a smartphone app can’t do? Researchers at the University of Washington, UW Medicine and Seattle Children’s hospital have figured out how to let people measure their own lung health by breathing in the direction of the standard microphone on a smartphone, without any specialized attachments.
“Here’s the cool part: The results from the app are within 5 percent of those from commercial spirometers that run into the thousands of dollars. That level of accuracy means the app is already meeting medical standards.
“The app, called SpiroSmart, analyzes the sound waves from a strong exhale to judge the health of the person’s lungs.”