EmbracePlus SpO2 Accuracy Validation

Inclusion Criteria: * The subject is male or female, aged ≥18 and \<50. * The subject is in good general health with no evidence of any medical problems. * The subject is fluent in both written and spoken English. * The subject has provided informed consent and is willing to comply with the study procedures. Exclusion Criteria: * The subject is obese (BMI\>30). * The subject has a known history of heart disease, lung disease, kidney or liver disease. * Diagnosis of asthma, sleep apnea, or use of CPAP. * Subject has diabetes. * Subject has a clotting disorder. * The subject a hemoglobinopathy or history of anemia, per subject report or the first blood sample, that in the opinion of the investigator, would make them unsuitable for study participation. * The subject has any other serious systemic illness. * The subject is a current smoker. * Any injury, deformity, or abnormality at the sensor sites that in the opinion of the investigators' would interfere with the sensors working correctly. * The subject has a history of fainting or vasovagal response. * The subject has a history of sensitivity to local anesthesia. * The subject has a diagnosis of Raynaud's disease. * The subject has unacceptable collateral circulation based on exam by the investigator (Allen's test). * The subject is pregnant, lactating or trying to get pregnant. * The subject is unable or unwilling to provide informed consent, or is unable or unwilling to comply with study procedures. * The subject has any other condition, which in the opinion of the investigators' would make them unsuitable for the study.