Blueair Blue Pure 511i Max
No shop we follow delivers this model to the Netherlands. This page says what it can do, and which similar robots you can buy here.
Before you buy, compare it with 2 recommended alternatives
No shop 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 Blueair Blue Pure 511i Max Best on 2 facts | Cheapest of the top 10 Honeywell HPA710WE Best on 2 facts | Highest score here Dreo 530S Best on 1 fact | |
|---|---|---|---|
| Most important facts | |||
| The lowest price today at a shop that delivers to you, delivery included. A price with an asterisk comes from a shop abroad, and its delivery cost is our own estimate. Lowest price | – | € 110Amazon.nl best | € 145Amazon.nl |
| Our own score out of 10: 60% measured facts and 40% shop ratings. Price does not count. Score | not in our ranking | best | |
| The average of the stars buyers give at the shops, with the number of reviews behind it. We only compare it from 20 reviews. Customer rating | – | ★ 3.0 · 2 reviews | – |
| 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. In this comparisonWhen it matters
When it matters less
Source
| 260 m³/h best | 187 m³/h | 221 m³/h |
| 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. In this comparisonWhen it matters
When it matters less
Source
| 22 m² best | 16 m² | 18 m² |
| 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. When it matters
When it matters less
Source
| HEPA-type | True HEPA | True HEPA |
| How long the maker says a filter lasts, in months of normal use. A filter that is spent cleans less. In this comparisonWhen it matters
When it matters less
Source
| 9 months | 12 months best | – |
| The sound level at the lowest speed, as the maker measures it. In this comparisonWhen it matters
When it matters less
Source
| 19 dB | – | 18 dB |
| The sound level at the highest speed, as the maker measures it. In this comparisonWhen it matters
When it matters less
Source
| 48 dB | 45 dB | – |
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.
Blueair Blue Pure 511i Max specifications
The numbers that matter first, then every fact by group. As published by the maker or the shop we read it from.
Blueair · on the market since December 2024
Cleaning performance 9 facts
- Clean air delivery rate (CADR)
Among the models we track
260 m³/h on this model
Lowest
20 m³/h Highest
1,019 m³/h Middle
300 m³/hLower than 117 of the 209 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.
When it matters less
- In a small bedroom most purifiers keep up on a low setting.
Source: data.energystar.gov · checked on 13 Oct
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.
- 260 m³/h
- CADR measured to
Source: data.energystar.gov · checked on 13 Oct
The test the CADR comes from. AHAM AC-1 and the DOE test are independent and comparable. A maker's own test is not.
- DOE test
- CADR for smoke
Among the models we track
260 m³/h on this model
Lowest
58 m³/h Highest
1,019 m³/h Middle
350 m³/hLower than 37 of the 63 models we track.
When it matters
- Wildfire smoke or a wood stove nearby.
- Tobacco smoke indoors.
When it matters less
- For pollen and house dust the other figures say more.
Source: data.energystar.gov · checked on 13 Oct
The CADR measured with tobacco smoke, the finest of the three test particles. It is the figure to read for wildfire smoke.
- 260 m³/h
- CADR for dust
Among the models we track
270 m³/h on this model
Lowest
66 m³/h Highest
1,019 m³/h Middle
340 m³/hLower than 35 of the 55 models we track.
Source: data.energystar.gov · checked on 13 Oct
The CADR measured with dust.
- 270 m³/h
- CADR for pollen
Among the models we track
296 m³/h on this model
Lowest
75 m³/h Highest
765 m³/h Middle
382 m³/hLower than 33 of the 54 models we track.
When it matters
- Hay fever in pollen season.
- Windows left open in spring and summer.
When it matters less
- Pollen is coarse, so most purifiers catch it well and their figures lie close together.
Source: data.energystar.gov · checked on 13 Oct
The CADR measured with pollen.
- 296 m³/h
- CADR for fine particles (PM2.5)
Among the models we track
265 m³/h on this model
Lowest
61 m³/h Highest
1,019 m³/h Middle
400 m³/hLower than 19 of the 30 models we track.
Source: data.energystar.gov · checked on 13 Oct
The CADR measured for particles under 2.5 microns.
- 265 m³/h
- Room size we compare on
Among the models we track
22 m² on this model
Lowest
2 m² Highest
85 m² Middle
25 m²Lower than 112 of the 196 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.
When it matters less
- In a room well under the stated size, any model in the list will do.
Source: derived, no source of its own · checked on 17 Oct
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.
- 22 m²
- Room size the maker claims
Among the models we track
22 m² on this model
Lowest
4 m² Highest
260 m² Middle
48 m²Lower than 210 of the 256 models we track.
Source: blueair.com · checked on 17 Oct
The room size the maker states. Makers use different rules, so we show it but never rank on it.
- 22 m²
- Air changes the maker assumes
Among the models we track
4.8 per hour on this model
Lowest
1 per hour Highest
10 per hour Middle
4.8 per hourHigher than 32 of the 67 models we track.
Source: blueair.com · checked on 29 Oct
How many times an hour the maker assumes the air is changed when it states a room size.
- 4.8 per hour
Filter 5 facts
- HEPA filter class
When it matters
- Allergy to pollen, dust mites or pet dander.
- Fine dust from traffic, wood stoves or wildfire smoke.
When it matters less
- For smells alone the particle filter’s class decides little: the carbon filter does that work.
Source: blueair.com · checked on 15 Oct
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.
- HEPA-type
- Filter layout
When it matters
- Cooking or smoke, which wears out the carbon layer before the particle layer.
- Keeping the cost of filters down over the years.
When it matters less
- With no carbon filter in the purifier it decides nothing.
Source: blueair.com · checked on 17 Oct
Whether the particle and carbon layers are one filter or separate ones. Separate filters let you replace only the part that is spent.
- One combined filter
- Activated carbon filter
244 of the 251 models we track have this.
When it matters
- Cooking smells, smoke and pet odours.
- Gases from new furniture, paint or cleaning products.
When it matters less
- Against pollen and dust alone it adds nothing.
Source: blueair.com · checked on 15 Oct
A filter of activated carbon that takes out smells and some gases. It does not catch particles.
- yes
- Filter parts
Among the models we track
1 on this model
Lowest
0 Highest
4 Middle
1Lower than 70 of the 204 models we track.
Source: blueair.com · checked on 27 Oct
How many filters the purifier holds, each a part to replace.
- 1
- Replacement filter part number
- 111179
Running costs 3 facts
- Filter life
Among the models we track
9 months on this model
Lowest
1.3 months Highest
120 months Middle
12 monthsLower than 109 of the 208 models we track.
When it matters
- Running the purifier day and night, all year.
- Comparing what two models cost to own, since filters are bought again and again.
When it matters less
- Seasonal use, like a few weeks of hay fever: a filter then lasts for years, so compare filter prices instead.
Source: blueair.com · checked on 15 Oct
How long the maker says a filter lasts, in months of normal use. A filter that is spent cleans less.
- 9 months
- Carbon filter life
Among the models we track
6 months on this model
Lowest
2 months Highest
120 months Middle
6 monthsLower than 56 of the 118 models we track.
When it matters
- Smells from cooking, pets or smoke every day.
- A separate carbon filter, bought on its own schedule.
When it matters less
- Without smells to take out, it lasts longer than stated.
Source: Manual · checked on 29 Oct
How long the carbon filter lasts before it needs replacing, as its maker states it. Where it is a separate part, it is bought on its own schedule.
- 6 months
- Energy use a year
Among the models we track
103.3 kWh on this model
Lowest
42 kWh Highest
456 kWh Middle
187 kWhLower than 13 of the 18 models we track.
When it matters
- A purifier that runs around the clock.
- High electricity prices, where a few watts more add up over a year.
When it matters less
- Run for an hour now and then, it costs little whatever the figure.
Source: data.energystar.gov · checked on 13 Oct
The electricity the purifier uses in a year, as its maker states it. Multiply it by your price per kWh for what it costs to run.
- 103.3 kWh
Noise and power 5 facts
- Noise at the lowest speed
Among the models we track
19 dB on this model
Lowest
10 dB Highest
50 dB Middle
25 dBLower than 195 of the 231 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.
When it matters less
- In a busy living room with the TV on you will hardly hear the low setting.
Source: blueair.com · checked on 15 Oct
The sound level at the lowest speed, as the maker measures it.
- 19 dB
- Noise at the highest speed
Among the models we track
48 dB on this model
Lowest
30 dB Highest
74 dB Middle
54 dBLower than 204 of the 244 models we track.
When it matters
- Clearing the air fast, which needs the top speed.
- Open-plan spaces where sound carries.
When it matters less
- If you only run it on its low settings the top figure hardly matters.
Source: blueair.com · checked on 15 Oct
The sound level at the highest speed, as the maker measures it.
- 48 dB
- Power at the highest speed
Among the models we track
17 W on this model
Lowest
1.5 W Highest
2,200 W Middle
45 WLower than 230 of the 255 models we track.
Source: blueair.com · checked on 15 Oct
The power the purifier draws at its highest speed.
- 17 W
- Energy efficiency (IEF)
Among the models we track
8.8 cfm/W on this model
Lowest
3.4 cfm/W Highest
11.1 cfm/W Middle
6.8 cfm/WHigher than 13 of the 18 models we track.
Source: data.energystar.gov · checked on 13 Oct
Air delivered for each watt, the ENERGY STAR measure. Higher is better.
- 8.8 cfm/W
- ENERGY STAR certified
19 of the 20 models we track have this.
Source: data.energystar.gov · checked on 13 Oct
Certified by ENERGY STAR for the energy it uses to clean the air.
- yes
Air quality sensing 2 facts
- Air quality sensors
When it matters
- Leaving the purifier on auto all day.
- Wanting to see the air quality in the app.
When it matters less
- If you set the speed yourself, a sensor adds little.
Source: Manual · checked on 27 Oct
What the purifier measures in the air. A particle sensor lets it speed up and slow down by itself.
- PM2.5
- Automatic mode
223 of the 238 models we track have this.
When it matters
- Leaving it on all day without touching it.
- Air that changes during the day, from cooking, traffic or open windows.
When it matters less
- If you set the speed yourself each time, you will not miss it.
Source: blueair.com · checked on 15 Oct
The fan speed follows the air quality the sensor reads.
- yes
Smart features and warranty 2 facts
- App control
When it matters
- Switching it on before you come home.
- Seeing the air quality and the filter’s state at a glance.
When it matters less
- If it stands on auto in one room, you will rarely open the app.
Source: blueair.com · checked on 15 Oct
Whether you can control the purifier from a phone app, over wifi or only nearby over Bluetooth.
- Wi-Fi
- Matter
When it matters
- Running the robot alongside devices from other makers in one app.
- Not wanting to depend on the maker’s own app.
When it matters less
- If the maker’s app is all you use, it adds nothing.
Source: blueair.com · checked on 17 Oct
Matter is the standard that lets devices from different makers work together. With it you can run the robot outside the maker’s own app. On this model: Assumed, not a stated fact: the maker's full specification does not name it, so we take it as no.
- no (assumed)
Build 5 facts
- Shape
When it matters
- A desk or a bedside table, which takes a small tabletop unit.
- A room with little floor space, where a wall unit or a slim tower fits better.
When it matters less
- With a free corner any shape will do.
Source: derived, no source of its own · checked on 17 Oct
The purifier’s shape: a small tabletop unit, a tall tower, a box that stands on the floor or a unit mounted on the wall.
- Tabletop
- Height
Among the models we track
36.8 cm on this model
Lowest
4 cm Highest
127 cm Middle
50.8 cmLower than 204 of the 256 models we track.
When it matters
- A shelf, a sideboard or a spot under a window sill.
- A small room where a tall tower would stand in the way.
When it matters less
- On an open floor with room to spare it decides little.
Source: blueair.com · checked on 17 Oct
How tall the purifier is. It decides whether it fits on a shelf or under a window sill.
- 36.8 cm
- Width
Among the models we track
236.2 mm on this model
Lowest
75 mm Highest
615 mm Middle
280 mmLower than 180 of the 254 models we track.
When it matters
- A corner, a niche or a narrow gap beside furniture.
- A small room where floor space is scarce.
When it matters less
- On an open floor it decides little.
Source: blueair.com · checked on 17 Oct
How wide the purifier is. With its depth it decides how much floor it takes up.
- 236.2 mm
- Depth
Among the models we track
236.2 mm on this model
Lowest
75 mm Highest
610 mm Middle
240.5 mmLower than 135 of the 250 models we track.
Source: blueair.com · checked on 17 Oct
How deep the purifier is, front to back.
- 236.2 mm
- Weight
Among the models we track
1.9 kg on this model
Lowest
0.33 kg Highest
77 kg Middle
5.3 kgLower than 242 of the 266 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.
When it matters less
- If it stays in one place it hardly matters.
Source: blueair.com · checked on 13 Oct
What the purifier weighs. It counts most if you move it from room to room.
- 1.9 kg
Extras 2 facts
- CARB certified
44 of the 44 models we track have this.
Source: ww2.arb.ca.gov · checked on 13 Oct
Certified by the California Air Resources Board as making little ozone.
- yes
- Ozone produced
Among the models we track
3 ppb on this model
Lowest
0 ppb Highest
30 ppb Middle
1 ppbHigher than 23 of the 27 models we track.
When it matters
- Asthma or sensitive airways.
- A small room or a bedroom where the purifier runs all night.
When it matters less
- A purifier with no ioniser, or one that stays switched off, gives off next to none.
Source: data.energystar.gov · checked on 13 Oct
The ozone the purifier gives off, in parts per billion. California allows at most 50.
- 3 ppb
Warranty and certification 3 facts
- AHAM Verifide certified
28 of the 29 models we track have this.
Source: ahamdir.com · checked on 13 Oct
The CADR is verified by AHAM, the US trade body that runs the test.
- yes
- Warranty
Among the models we track
1 year on this model
Lowest
1 year Highest
10 years Middle
2 yearsLower than 188 of the 211 models we track.
When it matters
- A robot with a dock full of pumps and moving parts, where more can break.
- An expensive robot you plan to keep for years.
When it matters less
- For a cheap robot you would replace rather than repair, the extra years count for less.
Source: blueair.com · checked on 15 Oct
The warranty the maker gives in the Netherlands. Consumer law here stands apart from it and can last longer.
- 1 year
- Maker model numbers
- 3132111100
Sources: data.energystar.gov · blueair.com · Manual · ww2.arb.ca.gov · ahamdir.com
Frequently asked questions about the Blueair Blue Pure 511i Max
What size of room is the Blueair Blue Pure 511i Max for?
The Blueair Blue Pure 511i Max is sized for a room of about 22 m², the room size we compare it on. Its clean air delivery rate (CADR) is 260 m³/h, measured to DOE test.
How often does the Blueair Blue Pure 511i Max need a new filter?
The maker gives the filter a life of 9 months. The carbon filter lasts 6 months.
How loud is the Blueair Blue Pure 511i Max?
The maker states 19 dB at the lowest speed and 48 dB at the highest.
How much power does the Blueair Blue Pure 511i Max use?
It uses about 103 kWh a year on the maker’s test assumptions. At the highest speed it draws 17 W.
Does the Blueair Blue Pure 511i Max make ozone?
It is CARB certified, which means it stays under California’s limit of 50 parts per billion of ozone.
The maker
Blueair
- Founded in 1996
- Owned by Unilever
Blueair was founded in 1996 in Stockholm, Sweden, and was acquired by Unilever in 2016. It sells air purifiers and filters to American buyers through its own online store. Its US privacy notice names Blueair, Inc as the company behind the store, with an address in Chicago.