_x005f_x000D__x000Dre you looking for a professional, yet affordable vital capacity meter? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further<br> Our professional vital capacity meter must meet you needs. It is one of the best choices for you._x005f_x000D__x005f_x000D_Features_x005f_x000D__x005f_x000D_- Color: as shown_x005f_x000D_- Material: ABS_x005f_x000D_- Size: 15x6x3.8cm_x005f_x000D_- Spirometer is a portable, hand-held device that measures your ability to exhale air from your lungs and provides a accurate picture of airway ventilation._x005f_x000D_- Perfect for Athletes and Exercise, oxygen users and asthma. Dual flow range accurately measures for both adults & children. Instant readings track changes in air flow for detection of asthmatic issues._x005f_x000D_- Made of material for long lasting use._x005f_x000D_- Assists detection of pending asthma attack._x005f_x000D_- Instant readings help track changes in air flow.Packing list1 x vital capacity Meter