Dyson’s HushJet Mini Cool is a powerful pocket fan that lacks silence

The device weighs 208 grams, roughly matching an iPhone 17 Pro, and houses a 5,000mAh battery within a 38mm cylindrical frame. Users control the airflow via a rocker button that cycles through five speeds, plus a hidden Boost Mode. Despite the compact engineering, the fan requires a specific grip to avoid blocking the intake vents at the base, an issue that could be solved with better exterior texturing. Dyson includes an accessory to widen the base for desk use, though the fan is limited to its lowest speed setting when powered via USB-C.

Battery performance is robust for its size, lasting 62 minutes at maximum speed, though the lack of a real-time battery indicator while the motor is running is a missed opportunity. While Dyson claims its acoustic engineering eliminates high-pitched whirring, testing reveals the fan remains audible even at lower settings. Compared to the Nitecore izzCool 10 Pro, the HushJet is significantly louder at peak output, producing noise at higher frequencies that draw attention in quiet environments. Ultimately, the HushJet occupies a unique niche: it is too loud for a wedding ceremony but unmatched in cooling intensity for a day at an amusement park.