Description _x000D_ _x000D_Are 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! Our professional peak flow spirometer must meet you needs. It is one of the best choice for you. _x000D_ _x000D_Features _x000D_ _x000D_- Color: White. _x000D_- Material: Plastic. _x000D_- Size: 14.5x3.5x3.5cm; 5.71x1.38x1.38. _x000D_- The spirometer is a portable, hand-held device that measures your ability to exhale air from your lungs and provides an accurate picture of airway ventilation. _x000D_- Perfect for Athletes and Exercise, oxygen users and asthma. _x000D_- Dual flow range accurately measures for both adults & children. Instant readings track changes in air flow for detection of asthmatic issues. _x000D_- Made of material for long lasting use. Assists detection of pending asthma attacking. _x000D_- Assists in early detection of asthma attacks by accurately measuring peak flow.Packing list1 x Portable Spirometer Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia