Which hair dryer can I use the ghd professional hair dryer diffuser with? 24 September 2020 10:36 Updated Our new ghd professional hair dryer diffuser can be used with the ghd air® and the ghd helios™ hair dryers. Unfortunately, this will not work with the ghd flight® travel hair dryer. Related articles ghd air® hair dryer ghd helios™ hair dryer ghd flight® travel hair dryer What is the wattage of the ghd hair dryers? What is the warranty on my product?