Blue Pure 511i Max

Name: Blue Pure 511i Max
Brand: Blueair
Price: 111.99 USD
Availability: InStock
Rating: 4.5 (1968 reviews)

Air Purifier, Small Rooms

4.5

Rated 4.5 out of 5 stars

4.5 Stars (1,968 Reviews)

Save 20%

Color: Stockholm Fog

One Time Shipment

1 Air Purifier
1 Particle & Carbon Filter
1 Pre-Filter in Stockholm Fog

Filter Subscription

2 Replacement Filters
Save 15% on every filter
Pay when we send it

Customize Your Subscription

Select Filter

Everyday filter, tackling 99.97%¹ of dust, odors, allergens, smoke, & more.

Choose Frequency

Most Popular

Customize your purifier

Pre-Filter| Marie Kondo x Blueair$14.99

AllergenBlock Filter$44.99

SmokeBlock Filter$38.99

Our smallest smart air purifier

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

Quickly cleans 237 ft² in 12.5 minutes, 569 ft² in 30 minutes, & 1,138 ft² in 1 hour.
Automatically detects and quickly removes pollutants such as viruses, bacteria, dust, and odors.
Compact with 360-degree air intake, so you can place it anywhere-on the floor or table.
RealTrack Technology® accurately tracks filter lifetime based on usage and pollutant levels.

Perfect for bedrooms or offices
Place anywhere with 360˚ 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

Free & fast shipping
30 day home trial
Free extended warranty

Why choose Blue Pure 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.

“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

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.

Meet our filters

Particle & Carbon

Our original filter. Removes allergens and traps light household odors from pets, cooking and smoke
SmokeBlock

2x more activated carbon than our original filter. Removes up to 99.99%³ of wildfire smoke
AllergenBlock⁵

Extra protection against allergens. Traps and neutralizes dust, pollen and pet dander

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.

Free and fast shipping
30 day home trial
Extended warranty

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 odors, smoke, dust, pet dander, mold, 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 Pure 511i Max?

How often do I need to change the filters?

Your filter will last up to 9 months 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.

What is the warranty for the Blue Pure 511i Max?

4.5

Rated 4.5 out of 5 stars

Based on 1,968 reviews

Total 5 star reviews: 1.6k Total 4 star reviews: 145 Total 3 star reviews: 66 Total 2 star reviews: 41 Total 1 star reviews: 122

88%would recommend these products

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SP
S P.
Verified Buyer
3 minutes ago
Reviewing
Blue Pure 311i Max
Rated 5 out of 5 stars
LOVE the Blue Pure 311i Max!
The Blue Pure 311i Max is our third, and largest Blueair air purifier in our home. We have two small dogs (less than 20lbs), that shed. We bought this 311i Max to help with reducing allergens in the living area of the house, as it seems daily vacuums/dusting is not enough! In the short time we’ve had the 311i Max, the air quality is noticeably better. How do I know? I am not sneezing every morning when I sit and drink my coffee! And, I love the outer pre-filter sleeve…I can change the color to match the room decor and seasonal changes!
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BW
Brian W.
Verified Buyer
Yesterday
Reviewing
Blue Pure 211i Max
Rated 5 out of 5 stars
BlueAir Blue Pure 211i Max a great buy
Based on Consumer Reports ratings we bought the 211i and we love it. It is effective and quiet and was easy to set up. We connected it to our Wi Fi in minutes. Great quality product at a great price!
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SL
Shiuan L.
Verified Buyer
Yesterday
Reviewing
Blue Pure 211i Max
Rated 5 out of 5 stars
Works great
I love the app integration, everything just works, and the fan is powerful at its highest setting, I can feel the difference in the room!
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ES
ELIANA S.
Verified Buyer
Yesterday
Reviewing
Blue Pure 311i Max
Rated 5 out of 5 stars
311i max
Excelent product, i can feel the difference in the air I breath in. My allergies have improved a lot since i started using it. I have it next to my bed and is very quiet!
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CM
Carol M.
Verified Buyer
2 days ago
Reviewing
Blue Pure 311i Max
Rated 5 out of 5 stars
Blue Pure 311i Max
This is a great air purifier so far. We love that it's so quiet! And it seems soothing for our pets, an unexpected bonus
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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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