I purchased Drione Dust in 1999. It still seems to work. How affective is it at this age?
The manufacturer recommends that you use Drione Dust within 3 years of the date of purchase to ensure maximum efficacy. That being said, Drione does contain Amorphous Silica Gel which is a desiccant that can last indefinitely.
Answer last updated on: 07/15/2011