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Boeing Airplanes @BoeingAirplanes
Did you know that the volume of air inside an airplane cabin is exchanged every 2-3 minutes and flows from ceiling to floor? Learn how this helps protect your health and well-being while flying: https://t.co/yBBpAKnNs9 https://t.co/U85dF2qzNg — PolitiTweet.org