
Casinos are known for their distinct lack of windows and clocks, ensuring gamblers lose track of time and money. However, there is another subtle yet powerful tool in this psychological arsenal: scent. The use of scent in casinos is a well-researched phenomenon, with studies showing that certain aromas can increase gambling by over 40%. Casinos have long played to the senses, and scent marketers have found that the right fragrance can trigger emotional conditioning and loyalty, enhancing the mood to gamble. With gamblers 100 times more likely to remember a scent than something seen, heard, or touched, it's no surprise that casinos are turning to scent science to create a unique and alluring environment.
| Characteristics | Values |
|---|---|
| Reason for using incense in casinos | To attract and retain gamblers, and to enhance the environment |
| Effect of incense in casinos | Gamblers put more money into slot machines in a pleasantly scented area |
| Incense in casinos: ethical or not? | It is tricky because smell is tied up with memories and can induce mental associations that enhance the mood to gamble |
| Devices used to spread the incense | Metal devices attached to the ventilation systems that vaporize highly aromatic oils into the ducts |
| Companies that supply the incense | AromaSys, Air Aroma |
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What You'll Learn
- Casinos use scent marketing to attract and retain gamblers
- Aroma can induce mental associations that enhance the mood to gamble
- Casinos use HVAC systems to mix cold air with fragrance molecules
- Scenting public areas: Health concerns vs enhancing the environment
- Casinos use signature scents to create a unique identity

Casinos use scent marketing to attract and retain gamblers
Casinos have long been associated with the sensory experience they offer. The sound of jingling coins, the taste of free-flowing alcohol, the sight of glittering lights, and the touch of forearms on green felt-covered tables are all part of the casino experience. However, the sense of smell has often been overlooked. Casinos have started to recognize the power of scent in enhancing the environment and influencing gambler behaviour, leading to the use of scent marketing as a strategy to attract and retain gamblers.
The concept of scent marketing in casinos is not new. In 1991, Mark Peltier, president of AromaSys, installed the first scenting systems in the Mirage, Las Vegas. Since then, scenting systems have become common in casinos, with metal devices attached to ventilation systems vaporizing aromatic oils into the ducts, where the airflow carries and disperses them. Casinos use scent marketing because it works; research shows that gambling can increase by more than 40% when certain scents are added, and people are 100 times more likely to remember a scent than something seen, heard, or touched.
The unique scents of casinos are designed to create a memorable experience and encourage gamblers to return. Each casino aims for a signature scent, often trying to invoke a different region of the world. For example, the Mirage has a Polynesian scent, Mandalay Bay smells Southeast Asian, and the Bellagio evokes Northern Italy. These scents create a sense of place and differentiate one casino from another.
The choice of specific scents is critical in scent marketing. Citrus scents are refreshing, floral and woodsy scents are soothing and relaxing, and herbaceous aromas like peppermint are invigorating. The Venetian casino in Las Vegas, for instance, features a scent called "Seduction," a strong, soothing, and sensuous blend with a significant amount of musk.
While the allure of quick gain and gambling are the primary attractions, scent marketing plays a subtle yet powerful role in enhancing the casino experience and influencing gambler behaviour. Scent marketers aim to create an environment that triggers emotional conditioning and loyalty, encouraging gamblers to lose themselves in the thrill and risk and return for more, even when the odds are against them.
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Aroma can induce mental associations that enhance the mood to gamble
Casinos are known for their distinctive smells, often created by vaporizing highly aromatic and expensive oils into the ventilation systems. While the lure of quick gain and gambling is an obvious attraction, scent plays a crucial role in determining whether a player will return. Scent marketers aim to create an environment that enhances the thrill and risk of gambling, encouraging loyalty and emotional conditioning.
Research supports the idea that aroma can significantly impact a gambler's behaviour. A study by Dr. Alan Hirsch found that gamblers at the Las Vegas Hilton put 45.1% more coins into slot machines in a pleasantly scented area, indicating that the aroma may have induced positive mental associations that enhanced the mood to gamble.
The impact of scent on behaviour is likely due to the connection between smell and memory. Each person's reaction to a scent is unique, depending on their memories associated with that aroma. For example, someone might enjoy the smell of skunk because they associate it with a pleasant trip to their grandmother's house.
Casinos take advantage of this phenomenon by creating signature scents that evoke specific moods and emotions. For instance, the Venetian casino in Las Vegas uses a scent called "Seduction," featuring musk, described as "strong, soothing, and sensuous."
While the ethics of scenting public areas without further study may be debated, casinos continue to explore the use of aromas to enhance the gambling experience and create a unique atmosphere.
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Casinos use HVAC systems to mix cold air with fragrance molecules
Casinos are synonymous with the sound of jingling coins, the taste of free-flowing alcohol, the sight of glittering lights, and the touch of forearms on green felt-covered tables. However, the sense of smell is also an important factor in the casino experience. Casinos are known for the scent of cigarette smoke, but they have also been described as smelling like menthols, sticky drinks, and desperation.
The unique scent of a casino is not left to chance. Casinos use scent marketing to attract and retain gamblers, and scent marketers have to find ways for gamblers to continue to lose themselves in the thrill and risk and the desire to return, even after losing significant amounts of money. The use of HVAC systems to mix compressed cold air with fragrance molecules is one method employed to achieve this.
The concept of pumping scents throughout casinos dates back to 1996 when the Monte Carlo became the first commercial building in the United States approved to diffuse an odor among visitors without their consent. Since then, casinos have continued to experiment with different scents to enhance the environment and encourage gambling.
Research has shown that gambling increased by more than 40% when certain scents were added, and people are 100 times more likely to remember a scent than something seen, heard, or touched. Casinos use this to their advantage, creating signature scents to define their brand and enhance the gambling experience. For example, the Mirage in Las Vegas has a Polynesian scent, while the Bellagio has a Northern Italian scent with a strong cedar-citrus fragrance in the casino and a lighter, floral, cucumber-melon blend for its VIP check-in area and spa.
The use of HVAC systems to mix cold air with fragrance molecules allows for even coverage of the scent throughout the casino, creating a consistent and memorable atmosphere that entices gamblers to stay longer and return in the future.
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Scenting public areas: Health concerns vs enhancing the environment
Casinos have long been associated with the sensory experience they offer. The sound of jingling coins, the taste of free-flowing alcohol, the sight of glittering lights, and the touch of forearms on green felt-covered tables are all part of the casino experience. However, it is the sense of smell that has recently come under the spotlight, with casinos experimenting with scenting their public areas to enhance the environment and potentially impact gamblers' behaviour.
The concept of scent marketing in casinos is not new. In 1991, Mark Peltier, president of AromaSys, installed the first scenting systems in Las Vegas at the Mirage. Since then, many casinos have followed suit, diffusing various aromas to create a unique sensory experience for their guests. The Bellagio, for example, is known for its strong cedar-citrus scent, while the Venetian features a musk-based fragrance called "Seduction."
The use of scent in casinos is based on the idea that smell is strongly tied to memory and can evoke emotional responses. Scent marketers aim to trigger emotional conditioning and loyalty, creating an environment that enhances the thrill of gambling and makes patrons more susceptible to returning, even after losing significant amounts of money. Research has shown that certain scents can increase gambling activity by up to 45%, with gamblers putting more money into slot machines in pleasantly scented areas.
However, the practice of scenting public areas has also raised concerns about potential health risks and ethical implications. While some, like Dr. Alan Hirsch, who conducted the Hilton study, believe that further study is needed to establish any health problems, others argue that scenting can manipulate people's behaviours and moods without their consent. The Nevada Gaming Control Board has not yet determined whether it will regulate the use of fragrance in casinos, with spokeswoman Joanie Hammack stating that it is "outside their scope."
Ultimately, the debate around scenting public areas in casinos centres on balancing the potential benefits of enhancing the environment and improving business with the potential health and ethical concerns of using scent as a marketing tool. As casinos continue to experiment with scenting, further research and regulation may be necessary to ensure the practice is safe and ethical for all involved.
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Casinos use signature scents to create a unique identity
Casinos have long been associated with the sensory experience they offer. The sound of jingling coins, the taste of free-flowing alcohol, the sight of glittering lights, and the touch of forearms on green felt-covered tables are some of the experiences that casinos offer. However, casinos are now increasingly focusing on the sense of smell to create a unique identity.
The concept of pumping scents throughout casinos is not new. In 1996, the Monte Carlo became the first commercial building in the United States to diffuse an odour among visitors without their consent. Since then, casinos have been using signature scents to create a unique identity and enhance the overall environment. Mark Peltier, the president of AromaSys, a company that supplies scenting systems to casinos, explains that the sense of smell is tricky because it is tied to people's memories. For instance, a person might like the smell of skunk because they associate it with a pleasant trip to their grandmother's house. Understanding this, casinos use specific scents to create a unique identity and induce mental associations that enhance the mood to gamble.
Research supports the idea that scent marketing can effectively attract and retain gamblers. A study by Chicago researcher Dr. Alan Hirsch found that gamblers at the Las Vegas Hilton dropped 45.1% more coins into slot machines in an area scented with a pleasant odour. Similarly, Ha-ha Lung and Christopher Prowant's book, Mental Dominance, found that floral scents at the Las Vegas Hilton influenced guests to spend 50% more playing time. Recent studies have also indicated that ambient aromas have a powerful impact on the behaviour of gamblers.
Casinos use various methods to diffuse scents throughout their properties. Metal devices attached to ventilation systems vaporize highly aromatic oils into the ducts, where the airflow carries and distributes them. Other companies, like Air Aroma, develop diffusers that connect to HVAC systems, mixing compressed cold air with fragrance molecules for even coverage.
While the use of scent marketing in casinos can be effective, it is important to consider potential ethical implications. Some may argue that using scents to manipulate patrons' moods and behaviours is unethical. However, Dr. Alan Hirsch, who conducted the study at the Las Vegas Hilton, doesn't see a health problem in scenting public areas without further study. He compares it to using air conditioning, acknowledging that while there are risks, they are minimal.
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Frequently asked questions
Casinos use incense to enhance the environment and create a pleasant atmosphere for gamblers. The scent of incense can affect people's moods and behaviours, making them more likely to gamble and spend money.
Casinos use metal devices attached to their ventilation systems to vaporize aromatic oils into the ducts, where the airflow then carries the scent throughout the building.
Yes, each casino tends to have its own unique scent. For example, the Mirage has a Polynesian scent, Mandalay Bay has a Southeast Asian scent, and the Bellagio has a Northern Italian scent.











































