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"Even the design of the seat back or the tray table is all part of how we consider making that survivable space," he told the BBC.

There is a foldable tray table attached to each one.

"A key take-home message is the importance of passengers cleaning their seat area, including the tray table and the seat-back entertainment system," said Simon Williams, chief executive of charity Anaphylaxis UK.

Who can forget that viral video of the toddler using her tray table as a springboard on an eight-hour flight?

Specifically, don’t let your kids kick the back of the seat in front of them or slam their tray table over and over again.