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