This is a portable handheld spirometer that measures your ability to exhale air from your lungs and provides accurate airway ventilation images.<br> <br> It is very suitable for athletes, people who need oxygen and have asthma.<br> <br> Double flow range accurate measurement, real-time reading tracking airflow changes to detect asthma problems.<br> <br> Made of high quality materials, durable.<br> <br> Accurate measurement of peak respiratory flow is helpful for early detection of asthma attack.
Fruugo United Kingdom