The three most important are: 1  SaO2. Itâs a percentage that shows how saturated your arterial blood is with oxygen. 2  PaO2. Itâs the partial pressure of arterial oxygen. . 3  Itâs the same as SaO2, although itâs estimated by pulse oximetry. A normal value is 95-98%, although 90% or better is usually considered acceptable.
A peak flow meter is a portable, inexpensive, hand-held device used to measure how air flows from your lungs in one âfast blast.â In other words, the meter measures your ability to push air out of your lungs.
Some of the most popular flow meters are: peak flow meters, water flow meters, fuel flow meters, air flow meters, ultrasonic flow meters and flow monitor services. Many flow meters measure the volume of the material while other flow meters measure the speed, and still other flow meters measure the mass of the materials.