A peak expiratory flow rate (PEFR) measures how effectively you exhale. Also called a peak flow meter, this handheld device helps you document the amount of air and the speed at which you can ...

TeleBreather is a remote, electronic, handheld device that one can use at home to test how well the lungs are working. It accurately measures various volumes of air that can forcibly expel from the ...

Asthma is a common cause of sudden breathlessness However other illnesses can trigger the condition too Here’s how you can ...