The data you obtain may not be as accurate as that obtained using a spirometer though. Repeat three more times. var ref = ""; A less accurate (but very sanitary) method to measure lung capacity is by using a balloon. Then I situated the bucket in the center of the tray. One way is by using a piece of laboratory equipment called a spirometer. information on lung health: Tidal volume – the amount of air taken in or expelled during normal breathing. The data you obtain may not be as accurate as that obtained using a spirometer though. However, lung capacity can also be measured using a balloon. Lung Capacity Lab Name: _____ Date: _____ Period: __ Background Human lung capacity can be measured in several ways. Lung capacity can also be measured using a balloon. Vital Capacity is the maximum air moved in and out of the lungs. d.write('