Tag Archives: Breathing Tester

feellife AirFit 1 Breathing Tester Instruction Manual

The AirFit 1 Breathing Tester user manual provides instructions on how to use the device to exercise lung capacity and improve breathing. Suitable for individuals with respiratory illnesses and athletes, it contains a mouthpiece, venting hole, ON/OFF switch, LED screen, Type-C interface, and Type-C cable. Consult a doctor if you have a medical condition or a pacemaker/implant. Not intended to diagnose or treat disease.