You've likely seen the phrase "neutralizes odors" on product packaging many times. But what does that mean? Is it a bullshit claim? As this video from Reactions shows, there is real science behind the odor-fighting properties of Febreze and similar products.To understand the chemistry of odor-fighting, you have to first understand the chemistry of odors. All smells have a molecular basis, and molecules of volatile chemicals disperse quickly through the air and enter our noses. There they meet olfactory receptors, which send signals to the brain. This is where the science gets murky: we're still not exactly sure how these receptors work and decode the smells created by different molecules.So how exactly does Febreze clear the air of pesky, funky stink molecules?"Febreze contains a type of chemical called cyclodextrin," says physical chemist Chad Jones in the above video. "It's a cage-like molecule shaped like a funnel." Cyclodextrin molecules have the power to trap other molecules within themselves due to their unique structure. And once a stinky molecule is trapped by cyclodextrin, it is unable to reach your nose. Voilà.So the next time you have unexpected guests coming, go ahead and spray that stuff, because it actually works. Or, you know, keep your space clean like a real adult so you never have to worry.