When you first pick up the Dyson HushJet Mini Cool fan, you might be struck by its compact design and the bold “stone/blush” colourway. But the most immediate and enduring impression comes from turning it on: despite the brand’s “HushJet” promise of reduced turbulence and quieter acoustics, this handheld fan is loud. Very loud. At its highest setting it reaches 76.2dB, and in boost mode it hits a staggering 80.3dB — enough, according to the Hearing Health Foundation’s chart, to rival the noise of landscaping equipment heard from inside a house. For a device intended to keep you cool in a heatwave, the din is hard to ignore.
The noise problem: more “jet” than “hush”
Dyson’s engineers face an intractable physics problem: a motor small enough to fit in a handheld cylinder has to spin extremely fast to generate meaningful airflow. The HushJet Mini Cool uses a brushless DC motor that runs at up to 65,000 rpm, and the company claims wind speeds of up to 55 mph in boost mode. That raw power comes at an acoustic cost. Our testing, measuring with a sound app held 15cm from the device, recorded 61.5dB on the lowest setting — a background whirr that is tolerable but still audible from another room. By level two, the fan reaches 69.4dB, already uncomfortably loud for close-quarters use. At level five, 76.2dB makes it embarrassing to use in public; the boost mode’s 80.3dB is described as ludicrous, though Dyson says it is only intended for temporary bursts. A separate measurement by another reviewer put the highest setting at 78dB and boost at 72.5dB, confirming the noise is consistently high.
The battery trade-off compounds the noise issue. The fan packs a 5,000mAh cell similar to a large Android smartphone, but the high-speed motor drains it fast: the fan lasts 6 hours 9 minutes 30 seconds on the lowest setting but only 50 minutes 45 seconds on level five. Boost mode cuts that further. For comparison, other handheld fans last three to four hours at top speed or 10 hours on low, though their top speeds are lower. To test battery life, the fan had to run continuously at both extremes, and extended exposure to the volume was grating — even the reviewer’s cats were not fans of boost mode.
Despite the noise, some reviewers acknowledge that the HushJet Mini Cool may be quieter than rivals at comparable high airflow speeds. Dyson’s “HushJet technology” is designed to reduce turbulence, and the company says 17 years of airflow expertise has gone into the cylindrical frame that measures just 38mm across. Still, the name invites disappointment when the results are far from hush.
Power and design: a compact force of air
Where the HushJet Mini Cool excels is in raw wind speed. At its lowest setting, our anemometer measured 2.0 metres per second (m/s), similar to other handheld fans but feeling more concentrated due to the small head. At level five, it delivered a consistent 6.1m/s, and in boost mode it hit 7.5m/s — the second-highest speed recorded in our roundup. Only the JisuLife Ultra2 beat it, reaching 9.8m/s, but that fan weighs 294g, around a third more than the Dyson’s 220g. Dyson’s claim of up to 55 mph (about 25 m/s) in boost mode appears to be an upper theoretical limit; measured speeds are lower but still impressive for a device that fits in the hand.
The fan is available in three colourways: stone/blush, carnelian/sky (red with a light blue head), and ink/cobalt (dark blue and black). Design is typically Dyson: simple, intuitive, and aesthetic, with one power button and a speed rocker. Five lights above the rocker indicate the current level. The head rotates 360 degrees for directional cooling. Accessories include an adjustable lanyard that lets you wear the fan around the neck, with a cut-out grip that slides past the buttons for easy control, and a charging stand that provides desk stability. A travel pouch is also included. Dyson has promised a universal mount for strollers and a grip clip for straps and jackets — to be released later and sold separately. The fan can be used on its lowest setting while charging via USB-C, which takes about three hours for a full charge. Notably, the battery is not user-replaceable. Dyson, which has a dedicated sustainability magazine, makes no mention of recycled materials or ecological credentials for this product.
How it compares: alternatives that cost less (and sometimes sound less)
At £99.99, the HushJet Mini Cool is Dyson’s first handheld fan, launched in April 2026. It has sold out quickly and been restocked, reflecting a surge in fan demand during UK heatwaves: Currys reported a near 1,500% increase in searches, and Tesco sold over 30 times as many electric fans during a May heatwave. But alternatives are worth considering, especially if noise or price is a concern.
Shark ChillPill is Dyson’s arch rival, retailing at £129.99 to £149.99. It offers a 3-in-1 design with interchangeable heads: a standard fan, a misting spray, and a cooling plate for the wrist or neck. Our tests found it maxes out at 4.6m/s — significantly less powerful than the Dyson — and its design is less intuitive and comfortable. Battery life ranges from 1.5 to 11 hours depending on mode. Despite being more expensive and less powerful, the ChillPill’s versatility makes it a strong competitor for those who value cooling variety over raw airflow.
John Lewis handheld and foldable desk fan was the overall winner of our roundup of best handheld fans. It is well-made, inexpensive, and folds to double as a mini desk fan. It reaches only 3.7m/s, but its top speed produces just 62.4dB — quieter than the Dyson’s lowest setting. Battery life exceeds four hours on high and nearly 10 on low, and it charges via USB-C. For a fraction of the price, it provides a far more peaceful cooling experience.
Diveblues Jetforce, priced at around £22.95, offers comparable power to the Dyson at a lower cost. In our tests, it reached 6.6m/s at its highest setting, and another measurement put it at 10 m/s. But it is also noisy: 66dB on low, rising to 74.3dB on top, roughly the level of a vacuum cleaner held close to the ear. Battery life is stellar — over 11 hours on low and almost three on high — making it a budget option for those willing to trade silence for airflow.
JisuLife Ultra2 was the only fan that beat the Dyson in power, maxing out at 9.8m/s across 100 speed adjustments. Even at that blast, its battery lasted over 90 minutes in our tests. It comes with adapters to inflate air cushions, start a fire, or blow dust from crevices, plus a torch on the back. Its weight of 294g is a third more than the Dyson, and the noise is extreme: 88.8dB at full speed. It is a versatile tool for campers, but not a quiet companion.
The Dyson HushJet Mini Cool delivers exceptional breeze for its size, but the noise at higher settings — and the battery life that plummets accordingly — make it a product that you will use sparingly in public and briefly at home. For those who can tolerate the din, the concentrated airflow is unmatched in its class; for everyone else, quieter and cheaper alternatives await.
