This handheld spirometer is a valuable tool for respiratory therapy and physical medicine & rehabilitation. Designed by Nemstar, a brand known for quality medical equipment, this model (NS-BT-1EA-0) is made in the United States. It can help users train their lung muscles and improve their breathing.

The device is ideal for individuals with conditions like asthma, COPD, and emphysema. Its use can help improve lung function and increase exercise tolerance. With its accurate readings and easy-to-use interface, this spirometer is a must-have for anyone looking to improve their respiratory health.