Blue Pure 511
![Blue Pure 511 Blue Pure 511](https://www.blueair.com/dw/image/v2/AASF_PRD/on/demandware.static/-/Sites-blueair-master-catalog/default/dw58982240/air_purifiers/2023-Updated-Hero-Images/HERO_BP511.png?sw=900&sh=900&sm=fit)
Our latest and smallest addition to the Blueair family. Introducing Blue Pure 511, our most compact, lightweight, yet efficient air purifier. Blue Pure 511 combines simplicity and performance for maximum filtration¹ and minimum noise2 at the touch of a button.
Our unique HEPASilent™ technology, combines electrostatic and mechanical filtration to capture at least 99.97% of airborne particles down to 0.1 micron in size².
![Blueair Flower Blueair Flower](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-ca-content-library/default/dw0c5394b5/2023%20Icons/Icon_Pollen.png)
![Blueair Cooking odors Blueair Cooking odors](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-ca-content-library/default/dwf6fac64b/2023%20Icons/Icon_Cooking.png)
![Blueair Dust Blueair Dust](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-ca-content-library/default/dw478ffea1/2023%20Icons/Icon_Dust.png)
![Blueair Pets Blueair Pets](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-ca-content-library/default/dw8944f0da/2023%20Icons/Icon_PetDander.png)
![Blueair Mold Blueair Mold](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-ca-content-library/default/dwfc4f79f3/2023%20Icons/Icon_Mold.png)
![Blueair Bacteria & viruses Blueair Bacteria & viruses](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-ca-content-library/default/dw00ec6c28/2023%20Icons/Icon_Bacteria.png)
![Blueair Smoke Blueair Smoke](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-ca-content-library/default/dw182bd1ec/2023%20Icons/Icon_Smoke.png)
![Blueair Chemicals Blueair Chemicals](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-ca-content-library/default/dw288ac9ed/2023%20Icons/Icon_Chemicals.png)
180 ft² (AHAM) in 12.5 minutes or up to 432 ft² in 30 minutes.
![Blueair Blue pure air purifier graphic with room sizing Blueair Blue pure air purifier graphic with room sizing](https://www.blueair.com/dw/image/v2/AASF_PRD/on/demandware.static/-/Library-Sites-blueair-ca-content-library/default/dwbc19729e/Blue%20Pure%20Max/Air%20Purifiers/511PDP-Parallax1.png?sw=368)
Press once for Night mode, twice for Everyday mode, and three times for Boost mode.
![Blueair Blue pure max aerial view Blueair Blue pure max aerial view](https://www.blueair.com/dw/image/v2/AASF_PRD/on/demandware.static/-/Library-Sites-blueair-ca-content-library/default/dw5c8bbe20/Blue%20Pure%20Max/Air%20Purifiers/511PDP-Parallax2.png?sw=368)
![Blueair Person in bed next to blueair air purifier Blueair Person in bed next to blueair air purifier](https://www.blueair.com/dw/image/v2/AASF_PRD/on/demandware.static/-/Library-Sites-blueair-ca-content-library/default/dw0a7b26d5/Blue%20Pure%20Max/Air%20Purifiers/511PDP-Body1.png?sw=468)
Small but mighty, the Blue Pure 511 is perfect for dorms, nurseries, and small home offices.
![Blueair Person in home gym next to air purifier Blueair Person in home gym next to air purifier](https://www.blueair.com/dw/image/v2/AASF_PRD/on/demandware.static/-/Library-Sites-blueair-ca-content-library/default/dw61c156fb/Blue%20Pure%20Max/Air%20Purifiers/511PDP-Body2.png?sw=468)
New and longer lasting filters (6-9 months)
The Blue Pure 511 operates on low at 24 dB (quieter than a whisper, and 49 dB (normal conversation) on high.
![Blueair Blue pure max pre-filter color array Blueair Blue pure max pre-filter color array](https://www.blueair.com/dw/image/v2/AASF_PRD/on/demandware.static/-/Library-Sites-blueair-ca-content-library/default/dwaa01ca9b/Blue%20Pure%20Max/Air%20Purifiers/511PDP-Body3.png?sw=468)
Designed with the sleek & stylish look of Scandinavian design
Our three Scandinavian inspired washable pre-filters are designed to seamlessly blend into your home.
Our pre-filters extend the life of primary filters, catching large airborne particles such as dust, lint, pollen, and pet hair.
![Blueair Quiet Mark Certified Blueair Quiet Mark Certified](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-ca-content-library/default/dw62a4695b/2023%20Icons/Icon-QuietMark2023.png)
![Blueair Energy star logo Blueair Energy star logo](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-ca-content-library/default/dwe0624026/2023%20Icons/Icon-EnergyStar2023.png)
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On/off timerNo
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Speed control options1 - 2 - 3
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Integrated air sensorsNo
![Blueair Image Blueair Image](https://www.blueair.com/dw/image/v2/AASF_PRD/on/demandware.static/-/Library-Sites-blueair-ca-content-library/default/dwb3759b8d/Blue%20Pure%20Max/Air%20Purifiers/InTheBox-511.png?sw=368)
Blue Pure 511 air purifier with pre-filter in Arctic Trail
![Blueair Filter Blueair Filter](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-ca-content-library/default/dw291f8715/Blue%20Pure%20Max/Air%20Purifiers/Blue211i%20-%20InTheBoxFilter.png)
Blue Pure 511 Filter
![Blueair IN the box - Instruction manual Blueair IN the box - Instruction manual](https://www.blueair.com/dw/image/v2/AASF_PRD/on/demandware.static/-/Library-Sites-blueair-ca-content-library/default/dw1dc28a60/Blue%20Pure%20Max/Air%20Purifiers/UserManual-InTheBox.png?sw=368)
Instruction Manual
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Dimensions(HxWxD)13.4 X 7.9 X 7.9 in
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Product weight4.2lbs
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Energy consumption2-16 W
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Sound level24-49 dB
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Air outletTop
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Recommended room size182 - 432 ft2
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Air changes per hour (ACH)4.8
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Clean air delivery rate (CADR) - Pollen112 cfm
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Clean air delivery rate (CADR) - Dust112 cfm
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Clean air delivery rate (CADR) - Smoke112 cfm
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Number of filters1
![Blue Pure 511 360 View](https://www.blueair.com/dw/image/v2/AASF_PRD/on/demandware.static/-/Sites-blueair-master-catalog/default/dw0b63efb8/air_purifiers/blue/511/ProductImage-511.png?sw=600&sh=600&sm=fit)
Key upgrades include: more coverage, quieter on highest fan, & smaller compact size.
To extend the Limited Warranty from one year to three (3) years, simply complete the product registration form in the 'Warranty' section of your customer account, within (60) days of purchase or register through the Blueair mobile app.
Vacuum the exterior of the fabric pre-filter to remove dust as often as you'd like. When the pre-filter requires a deeper clean, it can be washed on a gentle, low-temperature cycle in the washing machine. Hang to dry.
Disclaimers
¹Comparing pollen CADR on high fan speed (Blue Pure 411a Max & 411i Max vs. Blue 411 Auto), other units may vary. Based on AHAM maximum allowable certified rating which may vary from the AHAM seal claimed valued.
²Noise refers to the dB(A) difference in acoustic power.
³Sound pressure at max. fan Assuming 635 sq.ft room size and 4.8 air exchanges per hour (AHAM AC-1)
⁴Quietest refers to eligibility for Quiet Mark certification, limited to 10-20% of quietest products. See https://www.quietmark.com/ for further information
*Tested PM 2.5 (0.1 - 2.5 microns) up to 90min in a 30m³ room. Tested to remove min. 99.9% of S. aureus, K. pneumoniae, P. aeruginosa, MS2, E.Coli, H1N1, A.Niger.