Patent ID: 7892334

Claim:
A package of a volatile substance, comprising: a source generating the volatile substance, and a case which has the source generating the volatile substance enclosed therein and which has a wall at least part of which is made of a gas-permeable resin, wherein the source generating the volatile substance is a gas-permeable bag having the volatile substance enclosed therein; the thickness of the bag is 40 to 180 μm; the volatile substance is formed into a mixture having the volatile substance supported in an arbitrary compounding ratio on at least one or more kind of support, and the mixture is enclosed in the bag; the case is characterized in that a value expressed by the formula X×Z/Y is 200,000-1,500,000 where X represents the surface area (mm 2 ) of the wall made of the gas-permeable resin; Y represents thickness (mm) of the wall made of the gas-permeable resin; and Z represents the volatilization amount (mg/day) of the volatile substance volatilized by the source generating the volatile substance per day in an atmosphere at 30° C.