[postscapes1]

Aranet 4.

Determined my kids rooms are big culprit with doors closed. (Up to 1400 at night) now keeping door open.

I doubt this will fly when they are older so looking into installing an ERV/HRV system if anyone has any recommendations.

[giraffe_lady]

Also need to weigh the long-term effects of CO2 vs other acute risks like fire. It's been a minute since I took the course on this but iirc smoke inhalation is one of the bigger dangers of home fires and having bedroom doors closed is the strongest mitigator of it (other than smoke detectors obv.)

I really don't have the information to weigh this either way but I've considered closed doors a safety measure for years so this throws me off in an unsettling way.

[ahaucnx]

I retrovitted the bedrooms (and living room) in my house with a demand controlled fresh air system that contains high quality HEPA and carbon filters. The difference is extremely noticable. Especially when the air quality outside is not good, you feel like you are on a mountain top with crisp, clean air.

[postscapes1]

Any names you can recommend for something like this?