Possible Clues:

• Like some room fresheners
• Like a forest of firs
• Like a green air freshener's smell, perhaps
• Like some air freshener scents
• Like the scent of many air fresheners
• Scented like some air fresheners
• Like an air freshener's aroma, perhaps
• Abounding in certain conifers
• Like the scent of a forest of Christmas trees
• How air fresheners may smell