5 CONCLUSION
In this experiment, we modified both distractors and odors in the SSOI test to establish t-he CMOI test. The odor identification score of healthy volunteers in the CMOI test was significantly improved, reducing instances where volunteers found it difficult to name an odor because they were unfamiliar with the odor and corresponding distractors despite p-erceiving it. It highlighted the importance of unpleasant smells with warning functions. The CMOI test proposed in this study is an effective tool for evaluating the olfactory fun-ction of Chinese people.