![](http://www.alamy.com/thumbs/6/22107663-0968-474C-BF3C-1BD72828F178/M9W29A.jpg)
Man blowing into a peak flow meter to check from asthma severity
Size: 4080px × 3414px
Location: UK
Photo credit: © Kelly Rann / Alamy / Afripics
License: Licensed
Model Released: Yes
Keywords: adult, adults, aged, asthma, asthmas, background, big, blew, blow, blowed, blowing, blurred, breath, breathe, breathing, chart, daily, device, doctor, face, fingers, flow, inhale, issue, log, long, lungs, male, man, measure, measures, medical, men, meter, middle, numbers, overcome, peak, plastic, prescribed, severity, symptons, trouble, white