LOHOME Portable Air Conditioning Fan Chargeable Mini Bladeless Cooling Fan (White.) Safe: Without blades exposed no possibility to hurt people and pets by blade cutting. It's lower noise than traditional fan, just 30-60 decibel. The higher the wind, the great noise. Smooth air: The bladeless fan uses an airfoil-shaped ramp to amplify the airflow to create a cool blast of smooth air without the unpleasant buffeting caused by spinning blades. Easy to clean: Simple bladeless design, very easy to clean. Energy-saving: consumes half the energy of a conventional fan. Dimensions: 6.8 x 5.1 x 10.7 inches. LOHOME WARRANTY: We promise 1-Year Money Back and Lifetime Limited Product Warranty. If You're Not Completely Satisfied, Simply Let us Know and You'll be Offered a FULL Refund or Replacement, No Questions Asked.