Funny that we want to both make indoor spaces separate from the nasty outside but also connect to the outdoors when it's peachy. Jake kicks it off admirably by linking air quality to CONTROL (surprise, surprise). This podcast will be one in a bit of a mini-series on the broader topic of Indoor Environmental Quality (including things like thermal comfort and acoustics) and the connected topic of ventilation and its IAQ role.
IQAir - https://www.iqair.com/us/ (good air quality monitor for homes)
Pete's resource: https://www.buildingscience.com/document-search (click on the box for indoor air quality)