The CHI PRO Hair Dryer is the latest in Advanced American Technology. This lightweight quiet dryer utilizes Ceramic Technology, Negative Ions, Far Infrared and Low EMF. CHI PRO Hair Dryer includes the CHI Diffuser. All CHI products that are purchased Direct from Amazon.com are covered by a 30 day Amazon warranty. This item is not covered by the manufacture warranty. Applies only to products sold by Amazon.com. Does not apply to products sold on our site by third-party merchants or through third-party areas such as Amazon.com Marketplace or Auctions.