 With the sense of smell being so sensitive and powerful it is not a surprise that many companies have joined the industry, after all, 75% of our emotions are generated by what we smell.This form of sensory branding has already been used for some time, in fact, in 1990 Singapore airlines introduced Stefan Floridian Waters, a patented aroma that quickly became a unique trademark of Singapore Airlines.The distinctive aroma was blended into the flight attendants' perfume, into the hot towels served before take off and even made sure the whole plane had a hint of the smell.