There’s a pretty telling moment when you first set up the HushJet in a bedroom. We instinctively look for the Air Multiplier loop, this visual signature that has defined Dyson purifiers for more than a decade. She disappeared. Instead, a compact column (47 cm high, 23 cm wide and 23 cm deep, for a contained weight of 3.15 kg), topped with a star-shaped diffuser oriented towards the ceiling. A less demonstrative, almost more technical object, which intrigues more than seduces at first glance. And then we turn it on. A few seconds later, the obvious becomes clear: we can hardly hear him. All the logic of the product is there.
Presented at IFA 2025, the HushJet arrives with a simple but rarely kept promise in this category: to purify effectively without noise, in a contained format, capable of integrating into a living room without disturbing its use. On paper, it’s a difficult compromise. In practice, Dyson chooses here to clearly favor sound comfort, even if it means not seeking raw performance at all costs.
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The break begins with the way the air is diffused
The HushJet abandons the Air Multiplier system in favor of a nozzle called HushJet Entrainment, which is inspired in principle by turbulence reduction techniques used in aeronautics. The idea is not to reproduce a hush kit in the strict sense, but to use its logic: channeling a concentrated air flow to entrain the surrounding air while limiting turbulence, and therefore noise. Concretely, the purified air is projected upwards, bounces off the ceiling and naturally descends into the room. This avoids direct breathing, which is often unpleasant, while maintaining consistent overall circulation.
On the ground, this choice radically changes the experience. In night mode, announced at 24 dB, the HushJet becomes almost imperceptible one meter from the bed, while at full power the manufacturer announces 41 dB, which is extremely low for a compact purifier. But beyond the figure, it is above all the sound stability that makes the difference. There are no sudden variations in speed that we find on many purifiers, nor these sudden surges which end up annoying after a few nights. The sound remains constant, soft, almost flat. We no longer listen to it, we forget it, and that is precisely what Dyson is trying to achieve.
Performances to put in context
Dyson announces coverage of up to 100 m² (CADR of 250 m³/h), which corresponds to optimal diffusion conditions. In real use, the HushJet is especially suitable for medium-sized rooms. What the manufacturer clearly documents, however, is an air flow of up to 70 liters per second, with an oscillation of 90°.
The test therefore took place on two different configurations. First a bedroom of approximately 18 m², closed door, with window overlooking a busy street. Then a 32 m² living room semi-open to a kitchen, with greater air circulation. The device ran continuously, mainly in automatic mode, with a few sequences at full power to observe behavior at the limits.
In the bedroom, the HushJet is clearly in its element. From the first night, the sound remains stable, light, constant, without sudden variation or sudden rise. This point matters more than it seems: there is not this phenomenon of progressive irritation that we feel with certain purifiers which alternate silence and sudden accelerations. The sound does not hiss or vary unpleasantly. The LCD screen, sober and not bright in night mode, does not illuminate the room. These are the details that decide whether you keep a device on at night or end up turning it off after a week. The responsiveness of the particle sensor is one of the most convincing points. Window open for five minutes on busy street: PM2.5 levels visibly rise on the screen, the device gradually increases its speed, then brings the values back to a low level in a few minutes once the window is closed.
Same scenario with an aerosol sprayed remotely: almost immediate detection, ramp-up, then progressive stabilization. The device does not get carried away at the slightest change, it goes up, it corrects, it goes down again. This is exactly what you would expect from a well-calibrated automatic mode.
In the living room, the situation is different. On 32 m² with opening towards the kitchen, the HushJet works correctly but reaches intermediate speeds more often. When cooking in a pan without the hood activated, the peak is more pronounced and the phase returning to a normal level takes longer. This is not a defect, it is a question of the volume of air to be treated. The HushJet is optimized for medium-sized spaces. In a large open living room, it can work, but it works more, can be heard a little more, and the purification is slower. Dyson also sells a Big+Quiet Formaldehyde model for these uses, the HushJet is not designed to compete with them.
Filtration is based on a 360° system combining fine particle capture and gas treatment. Dyson announces an efficiency of up to 99.97% for particles of 0.3 microns, which covers most pollen, dust and household allergens. Added to this is an activated carbon filter intended to absorb odors and certain gaseous pollutants such as benzene or nitrogen dioxide. The system is fully sealed, an essential but often underestimated point since the captured air does not leak through the chassis, ensuring that what is filtered actually stays inside.
Real but progressive effectiveness
The other big thing not to ship is the filters. And this is where the HushJet becomes more interesting than it looks. Dyson does not rely on a single magic filter, but on two distinct elements. The first is a 360° electrostatic filter, responsible for capturing fine particles. The brand announces that it retains 99.97% of particles as small as 0.3 microns, so everything relating to fine dust, a good part of allergens and the most problematic suspended particles of everyday life. The second is a 360° activated carbon filter dedicated to gases and odors, intended to treat what the first cannot absorb, including cooking odors, certain volatile organic compounds and various gaseous pollutants mentioned by Dyson. The important point is that these two filters do not have the same wear logic at all. Dyson highlights a lifespan of five years for the 360° electrostatic filter (according to the GB/T 18801-2022 standard) at a rate of 12 hours of use per day. The activated carbon filter is a more classic consumable, to be replaced more regularly. This is essential data in calculating the real cost of the product, because it quite significantly changes the reading we can have of the starting Price at 399 euros.
This distinction between the two filters is also important so as not to say nonsense about the effectiveness of the product. The HushJet can be very convincing on particles, especially in a bedroom during pollen season or in a home with animals, because the 360° electrostatic filter works precisely on this type of pollution. It has the particularity of being able to capture allergens and dander, as well as odors linked to animals, but it must be understood that these are not the same filtration layers that come into play. On the one hand, we are talking about particles, on the other, odors and gases.
What makes the HushJet pleasant on a daily basis is not spectacular power, but a form of technical consistency. Its relatively compact size, its low weight, its high air flow for its size, its 24 dB in night mode, its particle filter announced for five years and its separate gas/odor filtration design a product very clearly designed for continuous use in a rest room. Dyson sells it as a compact purifier, and for once the word has meaning: not because it physically disappears, but because it limits the usual constraints of this category as much as possible. It is light enough to be moved easily, small enough not to monopolize space, quiet enough to run at night, and durable enough on the particle part to avoid the feeling of “permanent consumable” that many competitors give.
The interface and the application: sober, sufficient
The built-in LCD screen displays real-time air quality via color coding, PM10 and PM2.5 levels captured, as well as data from the last 12 seconds and the last 24 hours. You can read everything without using the smartphone, which is a good design decision.
The MyDyson application completes the package with historical monitoring of peaks, notifications, and the possibility of controlling the device remotely, speed from 1 to 10, Auto mode, Night mode, time programming. The monthly air quality report quickly becomes interesting because we notice that the most frequent peaks correspond to morning ventilation and evening cooking.
Alexa and Google Assistant compatibility is on the program, and Matter support allows direct integration into Apple Home without going through the Dyson application.
HushJet vs Levoit Core 400S: two markets, two logics
The comparison that naturally comes up in this segment is the Levoit Core 400S, the best-selling connected purifier in France in the 150-250 euro bracket, with a CADR of 400 m³/h for announced coverage of up to 83 m², an H13 HEPA filter, a night mode at 24 dB, a real-time PM2.5 sensor, and Alexa/Google Assistant compatibility. Its weak point: the filter must be replaced every 6 to 12 months for an annual cost of around 35 to 55 euros. Its size is more imposing (27 × 27 × 52 cm) and its design is more utilitarian.
Compared to it, the HushJet displays a significant price difference: 399 euros compared to around 200 euros for the Core 400S. On the raw technical sheet, the Levoit is even on par with CADR (400 m³/h compared to 250 m³/h for the HushJet) and filtration. But the comparison stops there. Dyson does not sell the same things: the lifespan of the electrostatic filter at five years considerably reduces the total cost over time, the sound signature is much more refined with a smoother progression between speeds, and the manufacturing quality is in another register.
The Levoit Core 400S is an excellent, rational product. The HushJet is a premium product that focuses on experience. We are not buying the same item, and we should not compare them solely on the purchase price.
For a home looking to purify effectively for a controlled budget, the Levoit wins. For a household that wants a room purifier that is completely forgotten about, the HushJet justifies its positioning.
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The question of price and maintenance
At 399 euros, the HushJet is positioned significantly above the mainstream competition. Maintenance should be anticipated: the activated carbon filter must be replaced every year at Dyson, and these consumables are not cheap. On the other hand, the five-year electrostatic filter really changes the calculation over time compared to models whose HEPA filters must be replaced every six months. Over five years, the difference in total cost reduces significantly compared to the initial price difference. If the goal is to make a purely rational purchase down to the penny, this is not Dyson’s favorite territory. If the objective is a purifier that you really use continuously, because you can’t hear it and it doesn’t bother you, the equation changes!
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