Duux Tube
No store we follow ships this model to the United States. This page says what it can do, and which similar robots you can buy here.
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Before you buy, compare it with 2 recommended alternatives
No store here sells this model today, so beside it the highest-scored model for the same room size that one does, and the cheapest of the top 10.
Green is the best of these 3, also when they share the lead.
| This model Duux Tube | Highest score here Blueair Blue Pure 311i Max Best on 2 facts | Cheapest of the top 10 Blueair Blue Pure 311i+ Max | |
|---|---|---|---|
| Price and ranking | |||
| The lowest price today at a store that ships to you, shipping included. A price with an asterisk comes from a store abroad, and its shipping cost is our own estimate. Lowest price | – | $229Blueair (brand store) best | $254Blueair (brand store) |
| Our own score out of 10: 60% measured facts and 40% store ratings. Price does not count. Score | not in our ranking | ||
| Where the model stands in our ranking, among the purifiers for the same size of room. Rank | – | rank 2 of 11 for open-plan spaces | rank 3 of 11 for open-plan spaces |
| The average of the stars buyers give at the stores, with the number of reviews behind it. We only compare it from 20 reviews. Customer rating | – | – | – |
| Room size | |||
| The size of room the purifier suits, with the largest room the maker names for it. Room size same on all | open-plan spacesup to 807 ft² | open-plan spacesup to 439 ft² | open-plan spacesup to 525 ft² |
| Size, noise and age | |||
| How tall the purifier is. It decides whether it fits on a shelf or under a window sill. In this comparisonWhen it matters
Source
| – | 19 in (48.3 cm) best | 21 in (53.3 cm) |
| The month the model first went on sale. It shows how old the technology in it is. On the market since | – | December 2024 | April 2025 |
Facts as the maker states them. A dash means the maker does not name it. Each model’s page gives the source of every fact. Noise is the maker’s own figure, so we do not judge it, and a customer rating only counts from 20 reviews.
Duux Tube specifications
The numbers that matter first, then every fact by group. As published by the maker or the store we read it from.
Also sold or tested as: DXPU03 (Europe) source
Cleaning performance 4 facts
- Clean air delivery rate (CADR)
Among the models we track
324 cfm (550 m³/h) on this model
Lowest
15 cfm (25 m³/h) Highest
600 cfm (1,019 m³/h) Middle
177 cfm (300 m³/h)Higher than 138 of the 164 models we track.
When it matters
- A large living room or an open-plan space.
- Clearing the air quickly after cooking, smoke or a window opened in pollen season.
- In a small bedroom most purifiers keep up on a low setting.
Source: Manual · checked on Oct 25
How much clean air the purifier delivers an hour, measured with smoke, dust and pollen. A higher figure cleans a bigger room or the same room faster.
- 324 cfm (550 m³/h)
- CADR measured to
Source: Manual · checked on Oct 25
The test the CADR comes from. AHAM AC-1 and the DOE test are independent and comparable. A maker's own test is not.
- The maker's own test
- Room size we compare on
Among the models we track
493 ft² (46 m²) on this model
Lowest
23 ft² (2 m²) Highest
915 ft² (85 m²) Middle
269 ft² (25 m²)Higher than 138 of the 164 models we track.
When it matters
- Choosing a purifier for one room you know the size of.
- Rooms with a high ceiling, which hold more air than the floor area suggests.
- In a room well under the stated size, any model in the list will do.
Source: derived, no source of its own · checked on Oct 25
The room size where the purifier changes the air 4.8 times an hour under a 2.5 m ceiling, worked out from its CADR. We use it so every model is compared on the same rule.
- 493 ft² (46 m²)
- Room size the maker claims
Among the models we track
807 ft² (75 m²) on this model
Lowest
53 ft² (5 m²) Highest
2,800 ft² (260 m²) Middle
521 ft² (48 m²)Higher than 116 of the 158 models we track.
Source: Manual · checked on Oct 25
The room size the maker states. Makers use different rules, so we show it but never rank on it.
- 807 ft² (75 m²)
Filter 1 fact
- HEPA filter class
When it matters
- Allergy to pollen, dust mites or pet dander.
- Fine dust from traffic, wood stoves or wildfire smoke.
- For smells alone the particle filter’s class decides little: the carbon filter does that work.
Source: Manual · checked on Oct 25
How fine the filter is. True HEPA and H13 catch at least 99.97% of particles at 0.3 microns. HEPA-type is a weaker claim with no test behind it.
- H13 HEPA
Noise and power 3 facts
- Noise at the lowest speed
Among the models we track
32 dB on this model
Lowest
10 dB Highest
50 dB Middle
24 dBHigher than 104 of the 128 models we track.
When it matters
- A bedroom, where it runs while you sleep.
- A home office or a quiet room where it runs all day.
- In a busy living room with the TV on you will hardly hear the low setting.
Source: Manual · checked on Oct 25
The sound level at the lowest speed, as the maker measures it.
- 32 dB
- Noise at the highest speed
Among the models we track
64 dB on this model
Lowest
30 dB Highest
70 dB Middle
53 dBHigher than 124 of the 137 models we track.
When it matters
- Clearing the air fast, which needs the top speed.
- Open-plan spaces where sound carries.
- If you only run it on its low settings the top figure hardly matters.
Source: Manual · checked on Oct 25
The sound level at the highest speed, as the maker measures it.
- 64 dB
- Power at the highest speed
Among the models we track
55 W on this model
Lowest
3 W Highest
2,200 W Middle
45 WHigher than 97 of the 144 models we track.
Source: Manual · checked on Oct 25
The power the purifier draws at its highest speed.
- 55 W
Build 1 fact
- Weight
Among the models we track
18.7 lb (8.5 kg) on this model
Lowest
0.7 lb (0.33 kg) Highest
169.8 lb (77 kg) Middle
11.7 lb (5.3 kg)Higher than 123 of the 154 models we track.
When it matters
- Moving the purifier from room to room, up and down the stairs.
- A shelf or a table that has to bear it.
- If it stays in one place it hardly matters.
Source: Manual · checked on Oct 25
What the purifier weighs. It counts most if you move it from room to room.
- 18.7 lb (8.5 kg)
Sources: Manual
The maker
Duux
- Founded in 2000
Duux is a home comfort brand with more than 20 years of experience, run by Duux BV. It makes fans, humidifiers, dehumidifiers, air purifiers, heaters, heated blankets and heated cushions, as well as accessories and spare parts. Its aim is products that bring comfort at home all year round.