We installed a new A/C in the corner room of our house a little while back, because we wanted to use it as a nursery. Installation went fine and the little one sleeps in there every night. A few months later we decided to get a baby cam, which happens to have an air quality monitor build in. I noticed strange things happening to the air quality in the room, which reaches concerning levels at times, hence my question:
What affects air quality indoors after home improvement?
Could the A/C unit itself blow in bad air? Could the carpet or the ceiling cause bad air quality? Could furniture (mattress / sofa / closet / drawer) cause bad air quality?
Now, I am obviously aware that keeping the windows closed and consuming air should gradually worsen the air quality, but what has been happening the last nights is more weird than that - the air quality suddenly goes from pretty good to bad in a matter of a few minutes. Now it could be a problem with the sensor, of course, but I did confirm with a secondary sensor, who gave similar results.
So, any idea what could cause sudden bursts of pollution into the air? Is that an indication of mold or would you expect an A/C to be able to actually worsen the air quality (I generally thought it would improve it)?