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

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

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?