Portable Espirometer

Electronic digital peak flow meter with LCD screen, the Value can be display clearly and quickly.

A medical spirograph device that evaluates, monitors, and reminds asthmatic and COPD sufferers how well their lungs worked.

PEF FEV1 automatically display: Measuring forced expiratory volume of 1 second (FEV1), peak flow rate（PEF).

Portable size & Easy your usage: Portable peak flowmeter, can be put in your pocket or bag, all it takes is a one second to blow to check your lung function when and where you want.

High accuracy & High repeatability: Pressure differential sensor applied ensures the high accuracy. No calibration is needed after manufactured. ATS ERS WRIGHT standards provided.