A pulse oximeter is a vital addition to any at-home health kit, acting as an early-warning system for respiratory and cardiovascular health. By providing a non-invasive, real-time snapshot of your oxygen saturation (SpO2) and heart rate, this compact device can detect "silent hypoxia," a dangerous drop in oxygen levels that can occur before you even feel short of breath. Whether you are managing chronic conditions like asthma or COPD, monitoring the recovery of a family member from a viral illness, or simply establishing a personal health baseline, a pulse oximeter provides the objective data needed to make informed decisions about when to seek professional medical care. Learn more about the Advantage 2200 Fingertip Pulse Oximeter.