Respiratory Rate Accuracy - Healthy Adults

• Start data collection system(s) and allow them to run 15 minutes prior to study start of each subject.
• Confirm that the subject meets inclusion/exclusion criteria and has signed the current IRB- approved Informed Consent Form
• Collect Demographic and Anthropometric Data from the subject.
• Place Pulse Oximetry Sensors
• Place nasal cannula for capnography recordings
• A summary of Respiratory rate protocol.

• Stage 1: Subject will rest quietly and breathe at a normal comfortable rate for 40 minutes. The start and stop times will be marked on the data collection system.
• Stage 2: Immediately after Stage 1 is complete, the subject will start the 25 minute paced breathing protocol which will ramp from 5-45 BPM. A computer program will be used to guide the subject through the stage 2 paced breathing. The start and stop times will be marked on the data collection system.

Inclusion criteria

• The subject is male or female
• The subject is of any racial or ethnic group
• The subject is > 30 kg (>66 pounds) in weight (based on measurement)
• The subject has at least one finger with a height of 0.3 - 1.0 inch (7.6 -25.4 mm) (based on measurement)
• The subject is between 18 years and 50 years of age (self-reported)
• The subject has given written informed consent to participate in the study
• The subject is both willing and able to comply with study procedures.

Exclusion criteria

• The subject has a BMI greater than 30 (based on weight and height)
• The subject has a history of atrial fibrillation (self-reported)
• The subject has a documented history of frequent premature ventricular contractions (PVCs), defined as >3 per 30 seconds (self-reported)
• The subject has an implanted pacemaker (self-reported)
• The subject has had any relevant injury at the sensor location site (self-reported)
• The subject has deformities or abnormalities that may prevent proper application of the device under test (based on examination)
• The subject has a known respiratory condition (self-reported)
• The subject has a known heart or cardiovascular condition (self-reported)
• The subject is currently pregnant (self-reported)
• The subject is actively trying to get pregnant (self-reported)
• The subject is unwilling or unable to provide written informed consent to participate in the study
• The subject has another health condition which in the opinion of the principal investigator makes him/her unsuitable for testing.