How do I clean the filter of my Dyson Airstrait straightener?
Unplug and cool down the device, then remove the filter unit by pulling it down from the machine onto the cable. Soak in warm, soapy water for at least 30 minutes before thoroughly cleaning each side with fingertips and allowing it to air dry completely afterward. (Page 9)
From the official Dyson Airstrait Straightener manual, page 9
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