Travel Diffuser Showdown: Surprising Ease In Runtime... Universal Fit, Gray Model Versus Needs We were intrigued by the Collapsible Silicone Hair Dryer Diffuser, especially its gray finish and universal fit claims. Our tests confirmed that it easily slots onto most dryers with nozzle diameters between 1.575 and 1.968 inches, a key advantage for us. The silicone construction tethers securely without blocking airflow, ensuring a stable diffusing experience. Its foldable design proved a game-changer during travel, shrinking our packing space significantly. While runtime ease wasn’t its primary claim, the diffuser’s lightweight build felt balanced during use, no heavier than our basic kit. The gray color, though understated, matched nearly all our gadgets. We appreciated its versatility and compactness, making it a standout choice for shared suitcases. The verdict? A practical solution for jet-setters who value flexibility without compromise.