The study, conducted by the Department of Defense in partnership with United Airlines, was published Thursday. They ran 300 tests in a little over six months with a mannequin on a United plane.
A landmark study from the Department of Defense and United Airlines conducted 300 tests in over six months with dummies in-flight to examine the possible spread of droplets.
The mannequin was equipped with an aerosol generator that allowed technicians to reproduce breathing and coughing. Each test released 180 million particles - equivalent to the number of particles that would be produced by thousands of coughs. They studied the way the mannequin's particles moved inside the cabin with a mask on and off.
"At United, but also at our large competitors, our flight attendants have lower COVID infection rates than the general population, which is one of multiple data points that speaks to the safety on board airplanes," United Airlines CEO Scott Kirby said during a Politico event. Among 1.2 billion travelers, IATA found only 44 published cases of potential inflight transmission. Most of those 44 cases occurred in the early days of the pandemic when masks were not required.
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