Volatile composition dispenser with cartridge for multiple volatile compositions

Abstract

A cartridge for a volatile composition dispenser includes (a) a first chamber including a first chamber opening and containing a first volatile composition; (b) a second chamber including a second chamber opening and containing a second volatile composition, where the second chamber is fluidly isolated from the first chamber; (c) a first breathable membrane covering the first chamber opening and having a first evaporation region through which the first volatile composition can evaporate; and (d) a second breathable membrane covering the second chamber opening and having a second evaporation region through which the second volatile composition can evaporate. A ratio between a surface area of the first evaporation region to a surface area of the second evaporation region is in a range of 1:1.3 to 1:6.

Dependencies are inferred from the claim text.