Introducing our Cheapest Medical 3 Balls Spirometer - an essential device for monitoring lung function and respiratory health. As a factory, we ensure that our product is of the highest quality standards, meeting all regulatory requirements. Our Spirometer features three calibrated balls that measure the strength of air blown out of the lungs, providing an accurate indication of lung capacity and function. The device is compact and portable, making it ideal for clinical and home use. With our Cheapest Medical 3 Balls Spirometer, you can easily track your respiratory health and take necessary action to improve your lung function.