VEGAS MYTHS RE-BUSTED: Casinos Pump in Extra Oxygen

EDITOR’S NOTE: “Vegas Myths Busted” publishes new entries every Monday, with a bonus Flashback Friday edition. Today’s entry in our ongoing series originally ran on July 29, 2022.


One of the most enduring myths of Vegas is that casinos pump oxygen onto casino floors to keep players alert and increase their playing time. Could this be true or based partly in truth? And, if not, how did it start?

A persistent Las Vegas myth has casinos pumping oxygen onto their floors to keep players alert and playing.
A group of oxygen tanks, above. A persistent Las Vegas myth has casinos pumping oxygen onto their floors to keep players alert and playing. (Image: American Society for Health Care Engineering)

“The rumor regarding the pumping of oxygen into casinos is not true,” Tony Cabot, distinguished fellow in gaming law at the University of Nevada, Las Vegas, told Casino.org.

 And there are several reasons why.

For one, a typical Las Vegas casino contains 1 million cubic liters of air. To raise the oxygen level just a single percent would use more than 40,000 cubic meters of oxygen gas every day, an incredible expense, according to the Arizona heating, venting, and air conditioning company Parker & Sons.

More importantly, adding more oxygen would create a fire hazard, because air with greater than the normal 21% oxygen is more of an accelerant, making any open flame burn hotter, faster, and at lower temperatures. The oxygen itself isn’t flammable.

This would violate all casino fire insurance policies, and if a fire were to occur, the investigation would lead to a public relations nightmare.

“Casinos do a number of things to encourage people to continue to play,” Cabot said. “But pumping in oxygen is not one of them. It’s just one of those myths about Las Vegas that people like to spread.”

Author You Can’t Refuse

This myth springs from the fertile imagination of Mario Puzo, the late author of “The Godfather.”

In Puzo’s 1978 novel, “Fools Die,” casino owner Alfred Gronevelt places a regular 2 a.m. call to his building engineer “to pump pure oxygen through the casino air-conditioning system to keep the gam­blers from getting sleepy.”

In the 45 years since the book’s publication, conspiracy theorists have circulated this fiction as fact. Even some legitimate media sources have joined in. One 2006 BBC article builds the myth up as true to make the point that “such psychological trickery would be banned in Britain.”

Casinos do fill the air with things to entice players to keep playing. These include loud music, pleasant scents, and freezing air-conditioning.

Look for “Vegas Myths Busted” every Monday on Casino.org. Visit VegasMythsBusted.com to read previously busted Vegas myths. Got a suggestion for a Vegas myth that needs busting? Email corey@casino.org.

Corey Levitan joined Casino.org in 2022 after a long career covering Las Vegas. He currently covers entertainment, dining and gaming news in Las Vegas.

Corey spent six years covering the Vegas Strip for the Las Vegas Review-Journal, where he also wrote the most popular humor column in the city’s history. (For “Fear and Loafing,” he tried out 176 Vegas jobs, including poker player, blackjack dealer and Follie Bergere dancer.)

Corey has won more than 100 local, state and national awards for his journalism, which has also appeared in Rolling Stone, New York Magazine and the New York Post.

Corey is a New York native whose hobbies include playing guitar, trying to be a better husband, and arguing with strangers on Facebook.

Contact Corey at corey@casino.org.

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  • R
    Ray November 28, 2024
    Dave and C J are each correct. The Marina was at the northeast corner of Las Vegas Blvd. South and Tropicana. Most of… Dave and C J are each correct. The Marina was at the northeast corner of Las Vegas Blvd. South and Tropicana. Most of it was demolished to make way for the MGM Grand, but one building remains, at the northwest corner of the property. I don't know what it's called now, but it used to be called the West Wing. The Maxim is now the Westin, on Flamingo just west of Koval, near Ellis Island. The two properties are a couple of miles apart.
    Reply
  • D
    Dave November 16, 2024
    The hotel that was incorporated into the MGM was the Marina.
    Reply
  • C
    CJ May 1, 2024
    I remember the Maxim being on Flamingo east of LV Blvd.
    Reply
  • A
    Ameen March 2, 2024
    Prior to that Lion on the corner of trop and the strip where MGM was built there was a casino there called the maxim and… Prior to that Lion on the corner of trop and the strip where MGM was built there was a casino there called the maxim and it was incorporated to the original part of MGM when MGM very first bought that that property there was an actual lion that was in an enclosure on that corner and you could go in and have your picture taken with it and that is a true story and that's middle '80s maybe late '80s I forgot the exact date but you could go inside and take your picture with the actual and actual live MGM line me and my wife did so a photo exists somewhere who knows where though that's for real
    Reply
  • C
    Chuck August 1, 2022
    Now I want to take a trip to Vegas just to look.
    Reply

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