I'm using two BME680's to measure air quality, temp, humidity etc. One sensor is placed on the outside wall of the building and second in the room of the building. Since IAQ is given as relative value I have no idea how to compare outside air quality to in-door air quality. I one of discussion it was recommended that both sensors are at first placed in the same room and once IAQ diference between those two is within 15% we can separate them. But let's say I can't do this and sensors are originally placed one outside and other inside. Is there any way that we start reading only in-door (or out-door?) data and after some time (1 week?) we take data from this sensor and push it to the other one and then start to read with other one too? I'm wondering if that's possible or any other recommended solution I will greatly aprecciate.
