"The Berlin S-Bahn smells of many things, not all of them pleasant: wet umbrellas, body odor, unwashed dogs, kebab and currywurst, sometimes spilled beer or schnapps."
"But that may change. The Berlin Transportation Authority (BVG) has announced plans to lace the S-Bahn with its very own de-odoring odor."
"The initiative is loosely based on a similar project in the Paris Metro, which introduced a fragrance called "Madeleine" in 1999. Named after what was formerly the French capital's smelliest stop (and a delicious pastry), the perfume has notes of orange, lemon and lavender. Parisian stations are mopped with an estimated 1.5 tons of the stuff per year."