Aroma Dri 2 Pounds Lavender Scented Silica Gel Desiccant Dehumidifier Beads - Aroma Dri Brand! Scented Silica Gel can last up to 1 year, varies depending on your conditions. Aroma Dri is the ORIGINAL air freshener/dehumidifiers on the market! Perfect to use in bathrooms, under sinks, closets, shoes, etc. to help fight moisture issues while refreshing the area. Silica Gel is non-toxic and an inert product. Aroma Dri Silica Gel Bead Size is 2-5mm.