Biology Stack Exchange is a question and answer site for biology researchers, academics, and students. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Is it possible for a device to measure how much air we breathe in and out over the entire day and at what rate? I think if we have access to this data we can compare it across people.

share|improve this question
it is certainly possible to make. might be clumsy to wear though. – user813801 Jul 14 '14 at 20:47
up vote 3 down vote accepted

What you are looking for is a spirometer. There are different types of spirometers serving different purposes like the Incentive spirometer and the peak flow meter. I would suggest that you go through the wikipedia page on it to get more info.

enter image description here

share|improve this answer
thanks, but then the most advanced spirometer seems to measure breathing only temporarily and not on-the-go i.e. complete day analysis when doing routine tasks. so i guess the state-of-the-art has not reached that level. – user13107 Jul 15 '14 at 5:41
@user13107 Might be in development if the need arose but I am unaware of it. – The Last Word Jul 15 '14 at 5:44

Another possibility is K4 device and K4 device. Beyond spirometry it can measure other variables such as:

  • Pulmonary Gas Exchange (VO2, VCO2)
  • Breath by Breath Technology
  • Telemetry Data Transmission up to 1000m
  • Indirect Calorimetry
  • Integrated GPS System
  • Integrated Oxygen Saturation (SpO2)
  • Integrated 12-lead Stress Testing ECG
share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.