'Super-fast dryers often dry hair quickly but without smoothness' — a GHD exec on how the brand created a hair dryer that combines power and control

I've tested a lot of hair dryers, but the GHD Speed — a new addition to the brand's lineup, and the most recent model to grace my dressing table — is perhaps the most powerful I've ever used. It also offers an intriguing special feature in the form of 'halo dual-airflow technology'. Essentially, there's a perimeter of always-cool air surrounding the main airflow.

I caught up with Janine Jennings, Head of Education for GHD UK&I, to get the low-down on the new dryer and the idea behind the 'halo' effect.

"Super-fast dryers often sacrifice control for power, drying hair quickly but without smoothness," says Jennings. "GHD Speed delivers both high-velocity airflow and precision control, giving you ultra-fast drying with a super-sleek finish."