2024 Portable Spirometer Flow Meter Meter Expiratory Flow For Lung Asthma Detector Function Monitor For Adult Portable Spirometer Peak Flow Meter MeterFeatures- Color: As shown.- Material: ABS.- Size: 15 x 5 x 3 cm.- The spirometer is a portable, hand-held device that cab measure your ability to exhale air from your lungs and provides an accurate picture of airway ventilation.- 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.- Made of material for long lasting use. Assists detection of pending asthma attacking.- Assists in early detection of asthma attacks by accurately measuring peak flow.Packing list1 x ULTECHNOVO Peak Flow Meter