Hair dryers

How to pick one

The first real decision is not heat or attachments, it is motor type, and that is also where wattage stops being a useful number. A standard AC or DC motor dryer lists its wattage plainly, and inside that category a higher figure usually does mean more heating power. Dyson's digital motor line does not publish a wattage figure at all, rating itself on airflow and heat control instead, so a 1875-watt AC dryer and an unrated Dyson motor cannot be compared on a spec sheet. Only compare wattage within the same motor type, never across brands.

Above the entry price tier, the extra money mostly buys automation rather than raw drying power. Dyson's Supersonic Nural and Shark's HyperAir both add sensors that recognize which attachment is connected and adjust heat and airflow for you, instead of leaving those settings to you to manage by hand. That is convenient if you swap between a diffuser, a concentrator and a brush attachment often, and close to irrelevant if you always dry your hair the same way with the same attachment. Weigh that convenience against its price before assuming a sensor-loaded dryer will dry hair better.

A one-piece hot air brush, like Revlon's One-Step Volumizer, replaces a dryer and a round brush with a single tool, which saves a step for anyone doing a full round-brush blowout at home. It also locks you into that one brush head, so you lose the swappable concentrator, diffuser or comb that a standalone dryer offers. If you mostly want to dry curly or wavy hair with a diffuser, or you like switching attachments for different looks, a standalone dryer will serve you better than a brush-style tool built mainly for smoothing and volume.

Ionic, ceramic and tourmaline are real technologies, not just marketing words, but what they actually do is narrower than the packaging implies. An ionic generator changes the electrical charge of water droplets on wet hair, which can cut down on static and flyaways; it does not repair damaged hair or guarantee shine. Ceramic and tourmaline coatings spread heat more evenly across a barrel or heating element, which helps with consistent drying, not with undoing existing damage. Read heat-control and airflow specs as the mechanism at work, and treat shine, frizz and volume promises as the brand's own marketing language.