Quick-drying, without the heat damage** ThermoShield technology provides you with the ultimate protection from heat damage, by actively controlling the air temperature of the dryer so it remains at an optimum level. Featuring ThermoShield technology, ultra-compact nozzle for hairdresser-like results, precise control with 6 heat and speed settings, ThermoShield technology for ultimate heat protection, cold setting for the perfect look, slim nozzle for touch-ups and detailed styling * Compared to the BHD350 on the highest setting * ThermoShield setting ** Compared to a standard dryer *** Tested in the Philips lab with nozzle on the highest setting.