Dyson AM09 Hot and Cool Fan Heater, Nickel (Certified Refurbished) This Certified Refurbished product has been tested and certified to work and look like new, with minimal to no signs of wear, by a manufacturer or specialized third-party seller approved by Amazon. The product is backed by a minimum 90-day warranty, and may arrive in a generic brown or white box. Patented Air Multiplier technology effectively projects heating or cooling into the room quickly and evenly for a comfortable environment. Safety: this fan heater has no exposed heating elements so there is no burning smell, no fast spinning blades for small fingers and paws, and if the machine is tipped over, it will automatically shut off