Doing a SFO to LAX flight and have a choice between first on Delta E-175 or united 737. i know the 737 has HEPA but wasn't sure about on the delta E-175. Does anyone know? I found a link on AA's site that says their E-175's have HEPA (
https://news.aa.com/news/news-detail...-1990s-FLT-06/) so i suspect this is a standard thing, but no confirmation on Detla page.
Any insights?