Hypoxia at Multiple Wavelengths of Light

No additional information is required.

Inclusion Criteria:

- Is between 18 and 35 years of age

- Is American Society Anesthesiologist status 1

- Has a BMI between 18 and 30

Exclusion Criteria:

- Currently taking any medications other than birth control pills

- Has participate in an investigational drug study within one month prior to the start
of the study

- Fails the Allen's Test to confirm patency of the colateral artery

- Subject is female with a positive pregnancy test, or is female and is unwilling to
use effective birth control between the time of screening and study termination

- Has a positive urine continine or drug test

- Has an reported allergy to Lidocaine

- Has anemia or other hemoglobinopathy

- Has a room air saturation less than 95% by pulse oximetry

- Has an abnormal EKG

- Has an abnormal pulmonary function test via spirometry

- Is intolerant to a breathing mask apparatus

- Has a COHb greater than 3%, or MetHb greater than 2%

- Has another condition, which in the opinion of the principle investigator would not
be suitable for participation in the study

- Is unwilling or unable to provide informed consent or comply with the study
procedures