Andis' Nano-Silver Tourmaline Ceramic Hair dryer is a powerful, yet 75% quieter than the average dryer. The Nano-Silver technology with real silver has anti-bacterial properties. Crushed from precious gemstones, the tourmaline crystals emit negative ions that quickly seal the cuticle layer and eliminate frizz for smoother, silkier hair. The Ionic technology dries faster by breaking up water molecules. The dryer has a cool shot button to lock in styles and has 4 heat settings / air speeds for ultimate styling and control. It has a removable air filter for easy cleaning. For over 80 years, Andis has provided the barber and beauty industry with the finest quality of hair styling equipment to assure the highest level of professional results and now we are making this technology available for home use with the Andis at Home line of products. Designed and engineered in the United States, Andis also offers a complete line of quality clippers and trimmers for animal grooming as well as a full line of wall mounted hair dryers for the hotel industry. Andis warrants its retail products to the original purchaser against defective material or workmanship for five years from the date of purchase. All implied warranties are also limited to five years. Andis will replace the product without cost to the consumer. The defective unit must be returned to: The Andis Co., 1800 Renaissance Blvd., Sturtevant, WI 53177. To reach a customer service representative, please call 1-800-558-9441.