Medically reviewed by Daniel More, MD A peak flow meter is used to measure your peak expiratory flow rate (PEFR). PEFR describes how quickly your lungs expel air during a forceful exhalation after ...

We take a close look at burn rate, discuss why it’s important and show you exactly how to calculate this vital metric for your small business.

Researchers have developed a new measurement technique based on following molecules in a (turbulent) airflow. Its main advantage is that no measuring instruments or small particles, such as glass ...

The flow rate can be determined by matching the float position to a calibrated scale on the outside of the rotameter, when the sizing of the rotameter has been done in a correct way. Many rotameters ...