Are you looking for a professional and afable vital capacity meter? Do you need a durable, reliable tool that can perform multiple functions? Look no further. Our professional peak flow spirometer is designed to meet your needs and is an excellent choice for monitoring respiratory health. Features - Color: As shown - Material: ABS - Size: 15 x 5 x 3 cm - The spirometer is a portable, hand-held device that measures your ability to exhale air from your lungs and provides an accurate assessment of airway ventilation - Ideal for athletes, individuals with asthma, oxygen users, and those engaged in exercise routines - Dual flow range accurately measures peak flow for both adults and children. Instant readings help 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