Laifen is the 2019 Guangdong brand that made its name on a Dyson-rival dryer — then brought its servo-driven design to the toothbrush.

Laifen follows Oclean as the round’s crossover node — a Guangdong brand that made its name on a high-speed, Dyson-rival hair dryer, then brought its servo-driven design to the electric toothbrush. Its answer to a round about who owns the brushes and what the claims mean is a design-and-dispute one: an independent Chinese maker known as much for a Dyson-brought advertising dispute as for its engineering, its superlatives handled with care.

Its identity is from hair dryers to teeth. The dryer origin, the servo-driven design and the Dyson advertising dispute are the story here. Dryer first, brush next. From hair dryers to teeth.

(Honest notes, so the founding, the ownership and the disputes are framed accurately, with corrections. Laifen sells the Wave sonic toothbrush and the Swift hair dryer as its heroes; we report its language as the brand’s own. On origin: Laifen was founded in 2019 by Ye Hongxin, whose background is e-commerce and earlier hard-tech ventures, not, as sometimes claimed, a stint at another electronics brand, which we drop; it began with high-speed hair dryers and added toothbrushes at the start of 2024. On headquarters: its registered entity is in Dongguan, Guangdong, though it is often called Shenzhen-based, so we say China, Guangdong. On ownership: independent and privately held, with no Xiaomi link. On products: the Wave brush combines sonic vibration with an adjustable oscillation driven by a servo system, in a distinctive aluminium design, alongside the Swift dryer. On the disputes, corrected and precise: the notable matter is an advertising dispute, not a safety issue and about the dryer rather than the toothbrush, in which the industry self-regulator took up a Dyson challenge and Laifen discontinued its fastest-hair-dryer claim, then, in a compliance stage, the matter was referred to the regulator for non-compliance; we describe it factually and do not repeat the withdrawn fastest claim as true; and the Dyson design-copy angle is commentary and allegation, not an adjudicated finding, so we frame it as such and avoid implying any affiliation with Dyson. Its designs and product names are IP we describe but do not reproduce; there is no official brand hex; these tones are an unofficial interpretation.)

Laifen lives in a petrol steel. Click a swatch to copy the hex.

Laifen’s identity is design-led, crossover and dispute-flagged — a petrol steel, an ink, a pale steel, a deep petrol, and a paper. The palette leans petrol steel and deep petrol: a cool, machined register that nods to an aluminium, engineered design rather than a loud logo colour. It signals from hair dryers to teeth — design-led, crossover and dispute-flagged. The honest caveat: with no official brand hex, these values are a machined, unofficial interpretation, not first-party colours.

The lesson is a petrol steel signals a machined, design-led identity. Laifen’s world is the engineered device. For designers, it is a reminder that a petrol steel and a pale steel can carry a design-led, crossover brand — a cool tone held as an accent, not a product shot. Because a neutral hue can read flat, keep type dark and let the tone live in the accents, palette and band. The takeaways: date the founding to 2019 and Ye Hongxin, dropping the ex-Anker claim; note the Dongguan registration; credit the servo-driven brush; and describe the Dyson advertising dispute factually without repeating the withdrawn fastest claim.

The register is a design sans — design-led, crossover, dispute-flagged.

Laifen’s identity carries a design-led, crossover, dispute-flagged spirit — an engineering brand that crossed categories. A design sans captures the mood: clean, geometric and modern, the register of a design-led device maker. Set in a petrol-steel palette, the design sans feels precise and cool — exactly the personality Laifen carries. It behaves like a made, machined thing rather than a loud logo, mirroring a vibration-line and a pulse-ring. (Laifen’s real products and names are things we describe but do not reproduce, and the exact typeface is not ours to use.) Because it is not ours to use, the honest description is “a design-sans brand,” shown here in a stand-in. The type behaves like the brand: design-led, crossover and dispute-flagged.

Laifen stands for from hair dryers to teeth.

Laifen sits sixth in the round as its crossover node. A petrol-steel palette, a design sans and a 2019 founding make one thing — from hair dryers to teeth — the whole identity: design-led, crossover and dispute-flagged. The dryer origin is the pitch, the servo-driven design is the point, and the Dyson advertising dispute is the disciplined detail. The point is an independent Chinese maker known for both engineering and a Dyson-brought dispute, in a round about who owns the brushes and what the claims mean.

Put to work, the identity is the brand told straight, the origin corrected and the dispute kept precise. A brand in this spirit would date the founding to 2019 and Ye Hongxin, drop the ex-Anker claim, note the Dongguan registration, credit the servo-driven brush, and describe the Dyson advertising dispute factually. A reader in this spirit would keep the facts right: Laifen sells the Wave brush and the Swift dryer; it was founded in 2019 by Ye Hongxin; its registered entity is in Dongguan, Guangdong, though it is often called Shenzhen-based; it is independent with no Xiaomi link; and the notable matter is an advertising dispute about its fastest-dryer claim, not a safety issue. Laifen sits after Oclean and before Foreo. The honest editorial moves are to date the founding, to drop the ex-Anker claim, to credit the design, and to describe the dispute precisely.

For designers and brand-builders, Laifen carries the oral-care node: describe a superlative dispute factually — and don’t repeat the withdrawn claim. The lessons: a brand can cross from one category into another, here Laifen from hair dryers to teeth; a founding is dated to 2019 and Ye Hongxin, with the unverified ex-Anker claim dropped and his real background noted; a registration is placed in Dongguan, Guangdong, though it is often called Shenzhen-based; an ownership is described as independent with no Xiaomi link; a product is credited as a servo-driven sonic-plus-oscillation brush in an aluminium design; and the disputes are handled with precision, the advertising matter about the fastest-hair-dryer claim described factually without repeating the withdrawn superlative, and the Dyson design-copy angle framed as commentary and allegation rather than an adjudicated finding, with no implied affiliation. It is also a reminder to stay precise: Laifen is the independent, Guangdong design-led device brand that crossed from dryers to brushes — with the palette here an unofficial interpretation and the withdrawn fastest claim not repeated. The hook is that crossover: Laifen came to teeth from hair, a 2019 Guangdong brand that made its name on a Dyson-rival dryer and the Dyson-brought fastest-dryer advertising dispute, then brought its servo-driven design to the toothbrush. Read that way, Laifen is less a single brush than from hair dryers to teeth: design-led, crossover, dispute-flagged. The lesson for a brand is that describing a superlative dispute factually and not repeating a withdrawn claim reinforce the honesty, and dating the founding keeps it earned. Laifen made from-hair-dryers-to-teeth the identity — proof that an honestly-described dispute can anchor a node.

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