3 ms·
There is a difference between fresh air and clean air.
by fastball 4y ago
There is a difference between fresh air and clean air.
- Dalewyn 4y agoAnd I argue aircraft cabin air is neither fresh nor clean.
- fastball 4y agoOk, but research indicates that air circulation thru HEPA filters on planes is actually pretty good and this results in the air being thoroughly cleaned. So while certainly not fresh the evidence seems to indicate clean.