B.O.L.T spirometer is a device that can measure the condition of your lungs, by measuring the flow and volume of air inhaled and exhaled forcefully. To take a spirometry test, simply fix the turbine (consumable) to the Spirometer, launch the B.O.L.T app on your mobile device and follow along as the app guides you through the test with easy-to-follow instructions. This medical device records the amount of air you breathe-in and out and the speed at which you do so, and displays the various spirometry parameters.