Devices and methods for controlled release of volatile active ingredients

Abstract

Controlled release devices (CRDs) for release of a volatile active ingredient (AI) or a formulation thereof, the CRD comprising a matrix that includes the AI or the formulation thereof, and a cartridge that encases the matrix, the cartridge having pores dimensioned to control a rate of release of vapor of the volatile AI or the formulation thereof and to prevent leakage of liquid from the AI or the formulation thereof, the cartridge further having an external hydrophobic surface to prevent water penetration into the CRD.

Dependencies are inferred from the claim text.