"Say you've got help desk staff who are getting tense and frustrated -- they can press a button to get an aroma to help calm them down," Knight said.
Most of the firm's smells, such as the "aromas of football" set, are for pure entertainment.
"Footie Pitch" smells of grass, "Trophy Room" smells of wood polish, "Half Time" smells of pies, and "Changing Room" smells of liniment, giving the over-zealous football fan or club shop an authentic whiff of the beautiful game.
Knight points out that football pitches are rarely mown the day of a match, so the smell of freshly-cut grass won't do.
"That's how realistic we are -- we find out when they cut the grass."



