SpO2 Validation Study - All.Health Algo Oximeter Software

Inclusion Criteria: * Participant must have the ability to understand and provide written informed consent. * Participant is adult 22-50 years of age. * Participant must be willing and able to comply with study procedures and duration. * Participant is a non-smoker or who has not smoked within 2 days prior to the study. * Male or female of any race. Exclusion Criteria: * Participant has a resting SpO2 \< 92% as assessed by a pulse oximeter * Participant is considered as being morbidly obese (defined as BMI \>39.5) * Compromised circulation (i.e., Raynaud's Syndrome), injury, or physical malformation of fingers, toes, hands, ears or forehead/skull or other sensor sites which would limit the ability to test sites needed for the study. Tattoos in the optical path which would limit the ability to test sites needed for the study. (Note: Certain malformations may still allow participants to participate if the condition is noted and would not affect the sites utilized.) * Females who are pregnant * Females who are trying to get pregnant with confirmation of positive urine pregnancy test * Participants who have smoked in the last 2 days or participants who have refrained, for at least 48 hours, with COHb levels \>3% as assessed with a Masimo Radical 7 (Rainbow) * Participants with known respiratory conditions such as: (self-reported) * uncontrolled / severe asthma, * flu, * pneumonia / bronchitis, * shortness of breath / respiratory distress, * unresolved respiratory or…