I changed a few things as a result: * I am far more diligent about opening a window at my home and office. In winter I may open one a crack. * I leave my bedr

I changed a few things as a result: * I am far more diligent about opening a window at my home and office. In winter I may open one a crack. * I leave my bedroom door open at night * I noticed I was getting extremely high AQI index readings when cooking. I was frying things in a pan after previously cooking something else in the same meal (meat, then sweet potatoes). I now wash in between, use coconut oil (less AQI readings) and am more diligent about opening the kitchen door if the AQU gets high It's kind of like measuring weight. Once you have it stable, you don't really need to do anything. But, keeping the readings alerts you if something ever goes off track. Also very useful to see that even openings in windows could make large and immediate differences.