I have three BME680 sensors whose readings you can see below. They are in the same location, so I would expect readings to be within specified tolerances.
You can see that the "yellow" sensor is off, especially with regards to humidity.
I have not seen APIs to apply humidity calibration. Can this be done within the sensor, so that IAQ readings take it into account, and not as a post-reading calculation?
Note the gas readings are also very different.
This isn't confidence-inspiring, but I am willing to try whatever is suggested here.