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Non-Tech : Airline Discussion Board -- Ignore unavailable to you. Want to Upgrade?


To: Moonray who wrote (1428)10/15/2020 2:51:40 PM
From: Stock Puppy  Read Replies (2) | Respond to of 1868
 
Maybe I missed it(?) but I did not see the article report on the risk of masks not being worn -

after all in real life on the plane,

you have people with masks dangling under their noses,

people taking off the mask to talk (eh)

or to eat/drink.

It would be nice to know how your risk factor changes.

Maybe me being a careful person - if I take a plane I should just sit with the mask on all the time and forgo all goodies?

If I munch on nuts or drink, how increased is my risk?

Maybe with the wonderful ventilation in the plane there isn't much difference?
I'm sure ether must be, but what is it?



To: Moonray who wrote (1428)10/15/2020 2:52:20 PM
From: Sam1 Recommendation

Recommended By
Moonray

  Read Replies (1) | Respond to of 1868
 
Here is the Reuters article on that study.

Coronavirus exposure risk on airplanes very low, U.S. defense study finds
REUTERS 2:46 PM ET 10/15/2020

Oct 15 (Reuters) - The risk of exposure to the coronavirus on flights is very low, a U.S. Department of Defense study released on Thursday found, a positive sign for the airline industry as it tries to rebound from the pandemic's crushing effect on travel.

When a seated passenger is wearing a mask, an average 0.003% of air particles within the breathing zone around a person's head are infectious, even when every seat is occupied, it found.

The testing assumed only one infected person on the plane and did not simulate the effects of passenger movement around the cabin.

The study, conducted aboard United Airlines Boeing 777 and 767 aircraft, showed that masks helped minimize exposure to infection when someone coughed, even in neighboring seats.

About 99.99% of particles were filtered out of the cabin within six minutes due to fast air circulation, downward air ventilation and the filtration systems on the aircraft.

"These results ... mean your chances of COVID exposure on a United aircraft are nearly non-existent, even if your flight is full," said United Airlines Chief Customer Officer Toby Enqvist.

The study estimated that to receive an infectious dose, a passenger would need to fly 54 hours on a plane with an infectious person.

The research over six months involved 300 tests during 38 hours of flight time and 45 hours of ground testing. It was done by releasing particles the same size as the novel coronavirus across the entire cabin by section, each of which had 42 sensors representing other passengers who could potentially come in contact with the particles.

Each test released 180 million particles – the number of particles that would be produced by thousands of coughs.

Study participants included the Defense Advanced Research Projects Agency (DARPA) and Boeing Co(BA) among others. (Reporting by Sanjana Shivdas in Bengaluru and Tracy Rucinski in Chicago; Editing by Ramakrishnan M. and Cynthia Osterman)