The CEO of a major airline suggested during a congressional hearing last week that face masks provide little value on planes — a claim that was quickly amplified online.

Citing high-quality filtration systems aboard planes, Southwest Airlines CEO Gary Kelly stated that “masks don’t add much, if anything, in the air cabin environment.”

But experts strongly disagree. Here are the facts.

Claim:

Mask-wearing on planes is unnecessary because advanced air filtration systems sufficiently reduce the risk of COVID-19 transmission.

Facts:

While it’s true that the common air filtration and distribution systems used in modern aircraft are highly effective at reducing the risk of Covid-19 transmission among passengers, masks add another layer of protection for air travelers, experts told The Associated Press.

Kelly’s comments came during a Wednesday hearing before the Senate Committee on Commerce, Science, and Transportation. After returning home from the hearing, Kelly tested positive for Covid-19, a Southwest spokesperson confirmed to the AP on Friday.

This report was published by the Associated Press.

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