>Then why's the PPM in the yellow?
I hadn't turned the fan on yet. Left to its own, CO2 consistently rises above 1k in the mornings here. I believe it's to do with the temperature inversions which commonly occur here at this time of year, trapping all the nasty gunk in the air at surface level.
I'm aware of all the sneed oils, fluoride, Monsanto, NWO, etc. discourse but have never really involved myself in it beyond learning to be skeptical of mainstream health guidelines.
The real reason I have this sensor is that I was planning to sleep in an air-conditioned hole in the ground in the desert during the summer and one of my concerns was accumulated CO2 asphyxiating me in my sleep without warning. I never had the time to do it so now it's just in my room telling me how shite the air gets.