Are you looking for a professional and affordable vital capacity meter? Need a durable, reliable tool that performs multiple functions? Look no further. Our professional peak flow spirometer meets your needs and is an excellent choice. Features: - Color: As shown - Material: ABS - Size: 15 x 5 x 3 cm - The spirometer is a portable, handheld device that measures your ability to exhale air from your lungs and provides an accurate assessment of airway ventilation - Ideal for athletes, exercise enthusiasts, oxygen users, and individuals with asthma - Dual flow range accurately measures peak flow for both adults and children - Provides instant readings to track changes in airflow for early detection of respiratory issues - Constructed from durable materials for long-term use - Assists in the early detection of asthma symptoms by measuring peak expiratory flow rate Packing list: 1 x Peak Flow Meter