Have you ever wondered why the cabin crew sometimes walk down the plane aisle, spraying a mysterious liquid in the air before departure? The reason why is that some countries require aircraft cabins to be sprayed with pesticides to kill insects and stop the spread of diseases such as malaria, yellow fever, and Zika.
Read More Here: Aircraft Insecticide: Why Certain Plane Cabins Are Sprayed Before Departure | SimpleFlying.com
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