Cortana weather forecast in Celsius. Cortana learns as it goes. What worked well for me was asking for weather in Celsius in my questions and after a while ( I think 7 - 9 responses) she started to provide the weather in Celsius by default. Other users reported that they asked her to show temperature in Celcius by default and she made it default.
A respiratory profile consists of measurements of different volumes within your lungs. How much air you breathe is determined by your activity level. The amount of air you inhale in a normal breath while at rest is called your tidal volume (TV). Your body needs more oxygen when performing strenuous work or exercise tasks. The inspiratory reserve volume (IRV) is the maximum additional lung volume
For some of the test measurements, you can breathe normally and quietly. Other tests require forced inhalation or exhalation after a deep breath. Sometimes, you will be asked to inhale a different gas or a medicine to see how it changes your test results. Lung volume measurement can be done in two ways: The most accurate way is called body plethysmography. You sit in a clear airtight box that looks like a phone booth. The technologist asks you to breathe in and out of a mouthpiece.