Hi G6EJDdavid,
We have already mentioned that from your screenshot, the changes in IAQ and CO2 of BME688 are normal. We have not conducted comparative testing with SAGP40, so we are not aware of the comparison between SCD41 and BME688. The BME688 IAQ value was measured in the reference VOC mixture, bVOC mixture used for the test are listed in the BME688 datasheet.
... View more