Hi, First, we exposed BME sensor to the indoor air and the detected VOC concentration by sensor was about 6 ppm. Second, we exposed the BME sensor to the Toluene Gas with concentration of 20 ppm. But BME sensor still detected about 6 ppm VOC gas. Third, we exposed the BME sensor to the Toluene Gas with concentration of 1000 ppm. But BME sensor still detected about 6 ppm VOC gas. So we realized that is teems that BME688 is not sensitive to Toluene Gas. Beacuse as we exposed the sensor to the CO gas, the detected concentration starts to rise rapidly.
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