the spirometer
The least count of a spirometer typically ranges from 1 ml to 10 ml, depending on the model and precision of the device. This value represents the smallest volume change that can be accurately measured by the spirometer.
spirometer
spirometer
Vital capacity is measured using a spirometer. The person takes a deep breath in and then exhales as forcefully and completely as possible into the spirometer. The spirometer records the volume of air exhaled, which is used to calculate the vital capacity.
A spirometer can be used to monitor a person's breathing rate and the volume of air inhaled and exhaled. For persons suffering of lung-disease or asthma, this can make a spirometer a valuable monitoring tool in regards of their specific illnesses.
spirometer
Spirometer...spirometerSpirometer
Residual volume cannot be measured with a spirometer because a spirometer measures the volume of air that can be inhaled or exhaled, but it cannot measure the air that remains in the lungs after maximal exhalation. This leftover air, known as residual volume, is not accessible for measurement since it is trapped in the alveoli and airways. To assess residual volume, other techniques like body plethysmography or gas dilution methods are used.
Spirometer
One example is the spirometer.
spirometer