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-us-content-library/default/dw9d93a539/2023-Icons/Icon_Pollen.png)
![Blueair Cooking Blueair Cooking](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-us-content-library/default/dwb09a6cd1/2023-Icons/Icon_Cooking.png)
![Blueair Dust particles Blueair Dust particles](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-us-content-library/default/dw1a9ed3a6/2023-Icons/Icon_Dust.png)
![Blueair Pets Blueair Pets](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-us-content-library/default/dw1bc0b2bd/2023-Icons/Icon_PetDander.png)
![Blueair Mold particles Blueair Mold particles](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-us-content-library/default/dwa59f574c/2023-Icons/Icon_Mold.png)
![Blueair Bacteria and viruses Blueair Bacteria and viruses](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-us-content-library/default/dw5f58ac6d/2023-Icons/Icon_Bacteria.png)
![Blueair Smoking Blueair Smoking](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-us-content-library/default/dwdf53062d/2023-Icons/Icon_Smoke.png)
![Blueair Chemicals Blueair Chemicals](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-us-content-library/default/dwce59a7cd/2023-Icons/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-us-content-library/default/dw73a2bb1c/Blue%20Pure%20Max/511/511PDP-Parallax1.png?sw=768)
Press once for Night mode, twice for Everyday mode, and three times for Boost mode.
![Blueair Blue pure 411a max aerial view Blueair Blue pure 411a max aerial view](https://www.blueair.com/dw/image/v2/AASF_PRD/on/demandware.static/-/Library-Sites-blueair-us-content-library/default/dwa6b25f23/Blue%20Pure%20Max/511/511PDP-Parallax2.png?sw=768)
![Blueair Blue Pure 511 in small bedroom space Blueair Blue Pure 511 in small bedroom space](https://www.blueair.com/dw/image/v2/AASF_PRD/on/demandware.static/-/Library-Sites-blueair-us-content-library/default/dwf367653a/Blue%20Pure%20Max/511/511PDP-Body1.png?sw=468)
Small but mighty, the Blue Pure 511 is perfect for dorms, nurseries, and small home offices.
![Blueair Blue Pure 511 in gym space Blueair Blue Pure 511 in gym space](https://www.blueair.com/dw/image/v2/AASF_PRD/on/demandware.static/-/Library-Sites-blueair-us-content-library/default/dw66d04578/Blue%20Pure%20Max/511/511PDP-Body2.png?sw=468)
The Blue Pure 511 operates on low at 24 dB (quieter than a whisper, and 49 dB (normal conversation) on high.
![Blueair Blue pure 511 pre-filter color array Blueair Blue pure 511 pre-filter color array](https://www.blueair.com/dw/image/v2/AASF_PRD/on/demandware.static/-/Library-Sites-blueair-us-content-library/default/dw400861c1/Blue%20Pure%20Max/511/511PDP-Body3.png?sw=468)
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 Blueair Quiet Mark](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-us-content-library/default/dwcf8ca200/2023-Icons/Small/2023Logos-QuietMarkSMALL.png)
![Blueair Energy star logo Blueair Energy star logo](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-us-content-library/default/dwc539ef8a/2023-Icons/Small/2023Logos-EnergyStarSMALL.png)
![Blueair Image Blueair Image](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-us-content-library/default/dwec188020/2023-Icons/Small/2023Logos-AHAMSMALL.png)
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On/off timerNo
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Speed control options1 - 2 - 3
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Integrated air sensorsNo
Items packaged individually within box - please read manual for set-up instructions.
![Blueair Blue Pure 511 air purifier Blueair Blue Pure 511 air purifier](https://www.blueair.com/dw/image/v2/AASF_PRD/on/demandware.static/-/Library-Sites-blueair-us-content-library/default/dwb0ab6445/Blue%20Pure%20Max/511/InTheBox-511.png?sw=368)
Blue Pure 511 air purifier with pre-filter in Arctic Trail
![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-us-content-library/default/dwc18c9647/Blue%20Pure%20Max/UserManual-InTheBox.png?sw=368)
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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.
Press and hold down the LED button for 10 seconds to reset the replacement filter indicator.
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.
The LED indicator will turn yellow after 5 months of operation to warn that it's almost time to change the filter. When the indicator light turns red (one month later), it’s time to change the main filter.
Disclaimers
¹ Comparing 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.
² Test on PM 2.5 in 90mins
³Sound pressure at max fan. Assuming 219 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
*Based on third-party testing of removal rate of particles, PM2.5 in 45 minutes according to JEM 1467-2015 standard and pollen particles (7.234µm) in 30 minutes according to AHAM AC-1-2019 standard.