How do I use the Coanda smoothing dryer for smoothing?
Rotate the cool tip to select Smoothing mode on the Coanda smoothing dryer. Press it against the hair to switch airflow direction, and use the contact bar by positioning it against the head until you hear a click and hair attracts, then run from root to tip to hide flyaways. This attachment is for use on dry and straight hair. (Page 6)
From the official Dyson Supersonic 308C Hair Dryer manual, page 6
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