g supplemental oxygen as contributing factor in these documented fires. The literature review is very thorough in presenting supporting documentation on diminishing oxygen concentrations under surgical drapes via a scavenging system.Methodology/SamplingThe sample size was limited to 12 healthy individuals. Sampling did not include any individuals with major health issues. Power calculation was not used. The institutional review board cleared the study.DiscussionThe study was described in excellent detail, which was easily understood. The graphs were easily understood and meaningful to the article. The author gives enough detail to replicate the study at other institutions. Overall, the study did what it was designed to do, which was to the answer a very specific question. As discussed by the author, there are many limitations with the study, with the most obvious being, the limitations in the ability to generalize findings to other populations, and the use of healthy individuals without serious medical conditions. One important variable that the author does make mentioned of and did not manipulate is the five-minute interval time between measurements, which was based on previous study. Overall, it seemed as if the research was done appropriately, but the following changes are recommended: 1) Enhance the specimen cup/suction tubing scavenger system. 2) Adjusts the interval times between measurements. 3) Increase sample size. 4) Involved Class ASA III & IV patients to the study....