Like the other Dry & Store products, Zephyr operates on an 8 hour cycle. It uses warm, moving air and a desiccant, proven technology for maximum drying effectiveness. The biggest single difference is that Zephyr does NOT have a germicidal UV lamp. Zephyr weighs 1 lb. 4 oz. and measures 5.9 in. x 3.6 in. x 2.8 in.