Dyson Negative Ion Hair Dryer

Bench measurements of a high-copy Supersonic-style unit put noise at roughly 71–73 dB across the three speed settings versus 61–65 dB for the genuine dryer, and reviewers described the copy's sound as harsher/piercing. Note the listing itself advertises 60–70 dB, i.e. at or above the measured range of copies.

Teardown commentary on fake Supersonic-form dryers says the control board omits basic electrical-safety components such as the X/Y safety capacitor (安规电容), which commenters flag as a shock/leakage and fire risk for a bathroom appliance; reviewers also warn that copies skip certified safety design. Line-level evidence for the clone segment.

Reported failure patterns in the clone segment include very short lifespans: a buyer of a counterfeit Supersonic reported weak airflow and that the unit cut out after only a few minutes of first use, and investigators described some copies as damaging hair and carrying fire risk when the internal technology is not up to standard. The listing's own 12-month warranty claim has no independent corroboration in buyer discussion.

Buyers repeatedly note there is no servicing path for units from this clone tier: no official invoice (sellers say only group invoices), an explicit 'electronics not returnable/exchangeable' policy at purchase, and no manufacturer detection or repair support — so any defect has to be resolved with the seller alone.

Measured performance on a high-copy unit falls off at higher settings: airflow about 11.6 m/s and 12.9 m/s on speeds 2 and 3 versus 14.1 m/s and 16.2 m/s for the genuine dryer, and lower heat output (glass surface 51.2°C vs 65.4°C after one minute), meaning slower drying than the original despite similar rated wattage class.

Weight/handling of the clone form factor differs from the original in a non-obvious way: the copy's dryer body measured lighter (about 399.5 g vs 454 g) but its longer cord made the total in-hand weight heavier (about 661 g vs 574 g), so balance rather than bare body weight is the practical difference.

Across the counterfeited/high-copy Supersonic-form segment (same cylindrical barrel, non-folding handle and magnetic nozzle construction as this listing), buyers and teardown reviewers consistently report rougher sprayed-plastic finishes than the original: glossy or uneven spray instead of fine matte texture, burrs and sharp edges on the concentrator/diffuser rims, and visible gaps where the magnetic attachment rings should sit flush. Line-level evidence for the clone segment, not this seller's...

On these clones the speed/heat switches are frequently described as stiff and unfinished — heavier push travel than the original, unrounded edges that scrape the thumb, and dull, unevenly painted red/blue indicator dots and blurry LED indicators. Buyers in counterfeit-comparison threads call this out as one of the first 'hands-on' tells.