Blue 511i Max

Name: Blue 511i Max
Brand: Blueair
Price: 129.0 GBP
Availability: OutOfStock
Rating: 4.5 (14 reviews)

Air Purifier, Small Rooms

4.5

Rated 4.5 out of 5 stars

14 Reviews

Notify Me When Available

Our smallest smart air purifier

Keep your home a safe haven with the Blue 511i Max, featuring advanced air purification that’s quiet enough for nap time yet powerful enough for allergy season.

Quickly cleans 18 m² in 12.5 minutes, 43 m² in 30 minutes or up to 86 m² every 60 minutes.
Automatically detects & quickly removes pollutants such as viruses, bacteria, dust, and odours.
Compact with 360-degree air intake, so you can place it anywhere-on the floor or table.
RealTrack in-app filter monitoring accurately tracks filter lifetime based on usage and pollutant levels.

Perfect for bedrooms or offices
Place anywhere with 350˚ design
Automatically Adjust Fan Speed
Instant air quality readings
PM 2.5 pollutant tracking
App & Wifi connectivity
RealTrack Technology®
Smart home integration

Additional Features

Wi-Fi connectivity for remote control Yes
Speed control options 1 - 2 - 3 - 4 - Auto - Night
Integrated air sensors Yes

Shipping & Warranty

Ship next day free
30-Day Home Trial
Authenticity Guaranteed

Customise your purifier

Pre-Filter| Limestone£15.00

Replacement Filter£25.00

“I love that I can operate it from anywhere with the app. I can get it going before I get home from being outdoors. It is a very quiet machine. It has night mode and will dim or turn off all lights on the machine.”

Lesann

“I like having a one for each high-traffic room such as our master bedroom, office, and living room. Although this one was intended for our office, it is by far the most attractive air purifier I have yet to see, so I swapped it for the one we had in our living room.”

MrsAdams

“The unit will automatically adjust according to the air quality, and there is a light indicator letting you know how it accesses the value. You can also set it manually, with three fan speeds, and wireless capabilities.”

Kmill

Why choose Blue 511i Max?

Perfect for busy families

The "Welcome Home" feature automatically turns the purifier on when you're near and off when you leave, so your family always returns to a clean, safe environment without any extra effort.
Whisper quiet when you need it most

A sound level as low as 19 dB, the Blue Pure 511i Max operates quietly, ensuring it won’t disturb you or your family.
Kid-friendly design

Equipped with a compact, rounded shape, and display lock, the Blue Pure 511i Max is designed to fit seamlessly into any room without sharp edges, making it safe for children’s bedrooms or play areas.
Reliable air quality insights

Monitor indoor & outdoor air quality, set schedules, and have 24/7 control of your air purifier in the trusted Blueair app.

4 layers of filtration remove
99.97%¹ of airborne pollutants

HEPASilent™ technology combines electrostatic and mechanical filtration to capture tiny airborne pollutants like pollen, dust and smoke, faster* and quieter⁴ than traditional HEPA.

Exclusive features in the highly rated Blueair app

Effortlessly take control of your air

Pick your fan speed, let auto or night mode take over & keep settings secure with display lock.
Custom Schedules to Fit Your Lifestyle

Set your preferred times for enhanced air purification, so you can wake up to fresh air, keep your home clean during peak hours, and save energy when you're away.
RealTrack Technology®

Tracks your filter lifetime based on pollutant levels and alerts you when it’s time to replace your filter.

Independently proven performance

Free & fast shipping
30 day home trial
Authenticity guaranteed

Technical Specifications

Filter Type

Particle & Carbon
Dimensions(HxWxD)

36.8cm x 23.6cm x 23.6cm
Product Weight

1.9 kg
Energy Consumption

17 W
Sound level

19-48 db
Air outlet

Top
Recommended room size

(4.8 - 2 ACH) 26 - 62 m²
Air changes per hour (ACH)

4.
Clean air delivery rate (CADR)

Pollen 296 m³/h
Dust 270 m³/h
Smoke 260 m³/h
Number of filters

1
Speed control options

1 - 2 - 3 - 4 - Auto - Night

FAQ

What pollutants does the Blue Pure 511i Max filter out?

Our HEPASilent™ dual filtration technology removes 99.97%¹ of airborne particles down to 0.1 microns, ensuring pollen, cooking odours, smoke, dust, pet dander, mould, chemicals, allergen matter and even tiny particles such as viruses and bacteria², are captured with minimal noise and energy consumption.

What room size is best for the Blue Pure 511i Max?

What are the noise levels of the Blue 511i Max?

How often do I need to change the filters?

Your filter will last up to 1 year thanks to our proprietary RealTrack algorithm that accurately calculates the remaining filter lifetime based on fan speed, usage time and pollution levels.

When it's time to replace the filter, the filter replacement LED on the interface will turn red to remind you. Alternatively, connect to the Blueair app to receive an alert and easily re-order at the touch of a button.

4.5

Rated 4.5 out of 5 stars

Based on 14 reviews

Total 5 star reviews: 11 Total 4 star reviews: 1 Total 3 star reviews: 1 Total 2 star reviews: 0 Total 1 star reviews: 1

86%would recommend this product

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14 reviews

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SR
Sandie R.
Verified Buyer
2 days ago
Rated 5 out of 5 stars
Wonderfully quiet
Just right for the bedroom.
Was this helpful?
MH
MONEEB H.
Verified Buyer
2 days ago
Rated 5 out of 5 stars
Simply Excellent!
Bought this originally for my bedroom as my daughter has asthma and coughs a lot at night. Started to look at purifiers and thought to give this a try. The best decision ive ever made! Its made a huge difference to her and can feel the room a lot more lighter with this on. Auto mode is perfect can hardly hear! Highly recommend this product!
Was this helpful?
LT
Lucía T.
Verified Buyer
2 weeks ago
Rated 4 out of 5 stars
Good but does not monitor pm10
Effective at removing volatile components (removed the feromones from the diffuser and stressed out my cats! Just fyi for multi cat households) but that’s because it’s an efficient device. The app does not monitor pm10 levels indoors, you’ll need to pay for a more premium device for that.
Was this helpful?
DT
Deepu T.
Verified Buyer
2 weeks ago
Rated 5 out of 5 stars
Quiet and effective
Exactly what was needed. Cleans the air and shows the stats via the app. Not too big and sits well by the window sill (it's not that small either).
I'll know how effective it is when I clear the filter, but as of now, it's been showing most of the time as it is excellent air within the room, from the time it was switched on - with occasional changes.
Was this helpful?
NL
Nial L.
Verified Buyer
2 weeks ago
Rated 5 out of 5 stars
Works great
Functions beautifully
Was this helpful?

¹ Tested on PM 2.5 up to 90 mins

² Based on ELISA deactivation testing of Pollen (Cry J1), Pet Dander (Fel d1, Can F1), Dust Mite Matter (Der f1) on the filter media in 60 minutes.

³ Compared to standard in-unit filter. Based on removal testing of particles 0.4-0.7 μm in 60min in a 30m3 room. Performance may vary.

⁴ When similar CADR was measured, Blueair models with mechanical and electrostatic filtration achieved less noise with less energy than same models with only H13 HEPA mechanical filtration.

⁵AllergenBlock refers to inanimate allergens pollen, dust and pet dander.

*Comparing CADR performance of Blueair models with mechanical and electrostatic filtration vs same models with only H13 HEPA mechanical filtration.

Note: CADR and room size values have been updated to meet new DOE standards. Website listings reflect the most accurate information. You may notice slight differences versus product packaging during the transition.

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Blue 511i Max

Blue 511i Max

“I love that I can operate it from anywhere with the app. I can get it going before I get home from being outdoors. It is a very quiet machine. It has night mode and will dim or turn off all lights on the machine.”

“I like having a one for each high-traffic room such as our master bedroom, office, and living room. Although this one was intended for our office, it is by far the most attractive air purifier I have yet to see, so I swapped it for the one we had in our living room.”

“The unit will automatically adjust according to the air quality, and there is a light indicator letting you know how it accesses the value. You can also set it manually, with three fan speeds, and wireless capabilities.”

Perfect for busy families

Whisper quiet when you need it most

Kid-friendly design

Reliable air quality insights

4 layers of filtration remove
99.97%¹ of airborne pollutants

Effortlessly take control of your air

Custom Schedules to Fit Your Lifestyle

RealTrack Technology®

Get fresh updates for fresher air

Your cart

Blue 511i Max

Blue 511i Max

“I love that I can operate it from anywhere with the app. I can get it going before I get home from being outdoors. It is a very quiet machine. It has night mode and will dim or turn off all lights on the machine.”

“I like having a one for each high-traffic room such as our master bedroom, office, and living room. Although this one was intended for our office, it is by far the most attractive air purifier I have yet to see, so I swapped it for the one we had in our living room.”

“The unit will automatically adjust according to the air quality, and there is a light indicator letting you know how it accesses the value. You can also set it manually, with three fan speeds, and wireless capabilities.”

Why choose Blue 511i Max?

Perfect for busy families

Whisper quiet when you need it most

Kid-friendly design

Reliable air quality insights

4 layers of filtration remove 99.97%¹ of airborne pollutants

Exclusive features in the highly rated Blueair app

Effortlessly take control of your air

Custom Schedules to Fit Your Lifestyle

RealTrack Technology®

Independently proven performance

Technical Specifications

FAQ

Get fresh updates for fresher air

4 layers of filtration remove
99.97%¹ of airborne pollutants