What does wealth really smell like? It's not just expensive air fresheners. Paris Hilton, for example, favors Diptyque Baies candles, each costing around $70. It's a personal touch. Many billionaires, like Oprah Winfrey, use exclusive home fragrances from Agraria or Jo Malone. The Agraria AirEssence diffuser, which costs $150-$200, scents large spaces for months. Besides candles, there are professional systems. The Mandarin Oriental Hotel in New York dispenses its signature scent through its ventilation system, which can cost thousands of dollars a year for private residences. Wealth isn't just about brand names. Luxury homes are stocked with fresh flowers daily. Two dozen roses from McQueens Flowers in London easily exceed £100, delivering a subtle yet lingering scent. Even laundry smells special. The Laundress's specialty laundry detergents, $20 to $30 a bottle, guarantee that fine fabrics retain their signature scent. It's a true sense of luxury.