Going from a lie to the truth would be a start "Toxic fumes seep into the air you breathe on planes" -> Toxic fumes can seep into the air you breathe on planes

Going from a lie to the truth would be a start "Toxic fumes seep into the air you breathe on planes" -> Toxic fumes can seep into the air you breathe on planes" The original title is also not as bad, I think HN automatically removes the "how" "How toxic fumes seep into the air you breathe on planes" We are still at clickbait territory, but it would now be within HN rules with either of those titles.