Febreze air fresheners can mask some serious odors—like that fishy old shipping-container smell you're always trying to get out of your carpet. Below, check out a case-study video in which Grey, New York, makes a little mobile home out of a shipping container, drops it in New York's meatpacking district, and then asks blindfolded people where they think they are. Without fail, they believe they are in a lovely-smelling Eden full of puppies and rainbows. It's impressive—though it makes you wonder if Febreze wouldn't completely overpower your less-rancid living room with its powerful fresh stench.