The Z-ion Diffuser leverages the amazing ionic benefits of Zirconia to give you perfect curly, wavy or permed hair every time. Primary Features: Fits Z-Ion Dryer and S-Nano Dryer Zirconia Technology Zirconia Technology 40-50% Reduction in Drying Time 3X more Beneficial Negative Ions Ionic Technology Hair is More Manageable, Shinier and Softer Humidity-Proof Styles that Last Longer Faster Drying Time Prevents Frizz and Split Ends Far-Infrared Technology Enhanced Workability Better, Faster Results Less Damaging, More Healthy for Hair