That's why HRV systems exist. Keep your environment's air clean while retaining the heat plus circulating fresh oxygen. I intend to get a decentralized HRV li

That's why HRV systems exist. Keep your environment's air clean while retaining the heat plus circulating fresh oxygen. I intend to get a decentralized HRV like Lunos for my passive Tiny House. Any problem regular houses have with air quality, will be multiplied in a Tiny House without proper precaution.