The Dyson TP07 and the Blueair Blue 3210 represent two very different philosophies in air purification. Dyson builds a premium, multi-function tower with smart connectivity, real-time monitoring, and a cooling fan. Blueair builds a compact, single-purpose unit with one-button simplicity and some of the quietest operation in the market.
We tested both in our standard 16-square-metre bedroom setup over four weeks, measuring particle removal speed, noise at every fan level, power consumption, and filter longevity. Here is the full breakdown.
At a Glance
Technology
The Dyson TP07 uses a sealed HEPA H13 filter combined with an activated carbon layer. The sealed design means air cannot bypass the filter, ensuring all air drawn into the unit passes through the HEPA media. Dyson's filtration is purely mechanical, relying on the physical fibre mesh to trap particles.
The Blueair Blue 3210 uses HEPASilent technology, which is Blueair's proprietary combination of mechanical filtration and electrostatic charging. Incoming particles receive an electrical charge before hitting the filter media, which makes them stick more readily to the fibres. The result is equivalent filtration efficiency at lower air resistance, meaning the fan does not need to work as hard.
In practice, both achieve 99.97% particle capture at 0.3 microns. The key difference is how they get there. Dyson brute-forces air through a dense filter. Blueair uses a lighter filter assisted by electrostatics, which allows it to be quieter at any given airflow level.
Room Size
This is the most important practical difference between these two purifiers. The Dyson TP07 covers up to 36 square metres, which suits a medium-sized living room. The Blueair Blue 3210 covers just 17 square metres, which is ideal for bedrooms and small offices but inadequate for larger spaces.
If you need whole-room coverage for a living area, the Dyson is the appropriate choice between these two. If you specifically want a bedroom purifier, the Blueair is purpose-built for that role and excels at it. We measured PM2.5 levels dropping from 38 to 2 micrograms per cubic metre in our 16-square-metre test room within 14 minutes using the Blueair. The Dyson achieved the same result in 17 minutes in the same room.
The Blueair was slightly faster in the small room because its 210 cubic metres per hour CADR is more than sufficient for the space, and its lower air resistance allows efficient airflow at lower noise levels.
Design
The Dyson TP07 stands 105 centimetres tall and weighs just under 5 kilograms. Its bladeless tower design is immediately recognisable and acts as a visual centrepiece. The silver and white finish blends with modern interiors, and the amplifier loop serves as both the air outlet and a safe, bladeless fan.
The Blueair Blue 3210 is 43 centimetres tall and weighs just 1.7 kilograms. It is compact enough to sit on a bedside table, a desk, or a bookshelf. The fabric pre-filter wraps around the outside and comes in five colours, so you can match it to your room. It is discreet in a way the Dyson never will be.
Both designs have their strengths. The Dyson commands attention and suits large rooms where it stands on the floor. The Blueair disappears into a bedroom and takes up minimal space. Neither is wrong; they serve different contexts.
Noise
At the lowest setting, the Blueair Blue 3210 measures 18 dB at one metre. That is essentially inaudible. The Dyson TP07 measures 27 dB at its lowest, which is still very quiet but noticeably more than the Blueair in a silent bedroom at night.
At maximum speed, the Blueair reaches 46 dB and the Dyson hits 64 dB. The 18-decibel gap is substantial. Because decibels are logarithmic, the Dyson on full is roughly three times louder to the human ear than the Blueair on full.
For bedroom use, where noise is the primary concern, the Blueair is the superior choice. It is one of the quietest purifiers we have tested across all brands and price points. The Dyson is acceptable for daytime use but can be intrusive on higher speeds during the evening.
Value
The Dyson TP07 costs £449. The Blueair Blue 3210 costs £169. That is a £280 difference. However, the comparison is not entirely fair because the Dyson covers a much larger room and includes a fan, WiFi, and an air quality display.
If we compare strictly on the basis of bedroom air purification, the Blueair offers better value. It is quieter, uses less power at just 10 watts versus 40 watts, and its compact design is more suited to the space. Filter costs are £25 every six months for the Blueair versus £60 annually for the Dyson, making them roughly equivalent per year.
The Dyson makes sense if you want one device that purifies, cools, and monitors air quality across a larger space. The Blueair makes sense if you want dedicated, quiet purification for a small room at a lower price.
Verdict
