i don’t have a good caption for this photo but this is the situation in my garage right now

𝚆𝙾𝚁𝙺𝙸𝙽𝙶 𝙾𝙽: @vision 👁️ ✦  ensdata.net ✦ pugson.net/rfe ✦ 𝙿𝚄𝙶.𝙴𝚃𝙷 ✦ 𝙿𝚁𝙴𝚅: @rainbow 🌈 

i’m working on it for my house. sub 100 co2 readings without the need to ever open a window

Been thinking about this problem very often for homes everywhere. 

You got any links that you referenced that talks about alternatives to tackling this problem?

there isn’t really an alternative. you need a full HVAC system that ejects dirty air and pulls in fresh air without losing heat.

/grey - terminally online dad & spouse, building products on frontier solutions w frontier people.

there isn’t really an alternative. you need a full HVAC system that ejects dirty air and pulls in fresh air without losing heat. https://en.m.wikipedia.org/wiki/Recuperator