Hi brianchen,
Why that issue happened was Alcohol could be more similar to tea VOC value than normal air.
There are three ways to avoid that issue.
1) Accept when the possibility is over high level.
- Our app shows tea or air when each value is over 50% probability. In our BSEC library, you can see that we provide probability and range is 0 ~ 1. (1 is 100%). So, in your application, you might show "Tea" if only tea probability is over some level like 0.9 or 0.95.
2) Train potential gases including alcohol
3) Apply both suggsetions.
You might have similar issue when other gases are coming. Then, AI studio shows among your specimens.
Therefore, I recommend 3) Apply both suggestions option.
Thank you.
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