Just as you've settled in and adapted to one familiar scent—bam! The second scent in this dual air freshener invention hits you, with a synergistic pairing that's selectively released.
Gel can air freshener with dual scent
U.S. Patent Application 20160051718
Publication date: Feb. 25, 2016
Inventors: C. Bourne
According to this inventor, air fresheners that selectively release scent are desired. In addition, those that resist tampering and release more than one scent would be beneficial.
This patent application therefore describes an air freshener container divided into separate reservoirs by an inner wall. First and second different-yet-synergistic fragrant materials are disposed in each of the reservoirs in a water-based gel, wherein one of the materials can comprise a neutralizing agent.