
Sliding doors: Privacy panels, like these door-equipped seats by manufacturer Safran, have become very popular for airlines offering business class.

Brush past: Doors increase privacy and avoid the "brush past," where a passenger or crew member walking down the aisle bumps into a seated passenger.

Door dilemma: Chris Brady, an industry veteran and the founder of start-up seat maker Unum, says that airlines are divided on the issue.

Space and weight: Using doors can add unnecessary weight to a plane, reducing efficiency, and impacting on cabin space.

My space: Industry experts say some airline passengers appreciate the ability to cocoon themselves in their own space while on long journeys.

Look away: Some interior designs minimize passenger eye contact by using angled seats in a "herringbone" formation.

Smart and effective: "The question is increasingly going to be less about whether or not to have a door but more about how to deliver in a smart and effective manner," says Jean-Christophe Gaudeau, vice president of marketing at Safran Seats.


