What makes the Dyson Supersonic Nural different from previous Supersonic models?

The Nural adds an infrared scalp-sensing system absent from earlier Supersonic models. It detects proximity to the scalp and automatically reduces heat output to protect sensitive skin, while still drying hair efficiently. Previous models required manual heat adjustments. For formulators, this means heat-protectant products must perform across a wider, dynamically shifting temperature range rather than a single fixed setting.