3 ms·
Not if you're running AC.
by klipt 6y ago
Not if you're running AC.
- grishka 6y agoI'm from a place where you only need AC one week per year so naturally no one has it except in cars, but I've heard that decent systems, especially central ones, don't recirculate the same air over and over again but take it from the outside.
- Tempest1981 6y agoCheck out HRVs: (air exchangers) https://www.popularmechanics.com/home/interior-projects/how-to/a149/1275121/ https://www.popularmechanics.com/home/interior-projects/how-...