![Blue Pure 511 Particle + Carbon Filter Blue Pure 511 Particle + Carbon Filter](https://www.blueair.com/dw/image/v2/AASF_PRD/on/demandware.static/-/Sites-blueair-master-catalog/default/dw98047e6b/filters/blue/511-Filter.png?sw=900&sh=900&sm=fit&q=100&strip=false)
Blue Pure 511 Particle + Carbon Filter
Compatible with Blue Pure 511; Not compatible with Blue Pure 411i Max • 411a MaxPromotions
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![Blueair Inside of Blueair Blue Pure 511 Air Purifier Blueair Inside of 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/dw6fe6f004/Blue%20Pure%20Max/511/511Filter-Body1.png?sw=468)
Designed specifically for Blue Pure 511.
Find the name of your air purifier on the label inside your air purifier.
![Blueair Person putting on filter Blueair Person putting on filter](https://www.blueair.com/dw/image/v2/AASF_PRD/on/demandware.static/-/Library-Sites-blueair-us-content-library/default/dw019bbb1a/Blue%20Pure%20Max/511/511Filter-Body2.png?sw=468)
This air purifier features a hassle-free filter replacement system, allowing you to quickly and easily swap out the filter.
![Blueair null Blueair null](https://www.blueair.com/dw/image/v2/AASF_PRD/on/demandware.static/-/Library-Sites-blueair-us-content-library/default/dwf1182b04/Blue%20Pure%20Max/BlueVimeoFilterVideo.png?sw=468)
![Blueair Image Blueair Image](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-us-content-library/default/dwa367d4e1/New/Icons/New%20Icons%20July%2020/icon_energy_halfsize.png)
Our unique HEPASilent™ filtration technology allows this filter to be less dense, meaning it requires less air pressure. With it installed, your air purifier will operate quieter while using less energy.
![Blueair single button icon Blueair single button icon](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-us-content-library/default/dw6df61a6f/New/Icons/New%20Icons%20July%2020/icon_onebutton_halfsize.png)
This filter's unique structure is designed to filter high volumes of air while trapping even the smallest particles. It maintains maximum airflow because it's engineered to resist clogging.
![Blueair AQI icon Blueair AQI icon](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-us-content-library/default/dw358de82a/New/Icons/New%20Icons%20July%2020/AQI%20icon.png)
With the unique filter design at least 99.97%3 of airborne particles, even down to 0.1 microns, are removed, while using less energy and producing less noise.
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Recommended filter change6 months (4,380 hours) when used 24 hours a day
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Number of filters1
![Blue Pure 511 Particle + Carbon Filter Blue Pure 511 Particle + Carbon Filter](https://www.blueair.com/dw/image/v2/AASF_PRD/on/demandware.static/-/Sites-blueair-master-catalog/default/dw98047e6b/filters/blue/511-Filter.png?sw=450&sh=450&sm=fit&q=100&strip=false)
This filter is compatible only with the Blue Pure 511 air purifier.
Press and hold down the LED button for 10 seconds to reset the replacement filter indicator.
Quick cleaning: Vacuum the fabric pre-filter every time you do a big cleaning at home or when you see dust building up. Vacuum the exterior of the fabric with a soft brush attachment.
Deep cleaning: Wash the fabric pre-filter every time you replace the Particle & Carbon filter, approximately every 6 months. Wash the fabric pre-filter in a washing machine according to the pre-filter’s label. Hang to dry.
Regular maintenance of your air purifier will help preserving optimal performance.
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 Tested on PM 2.5, pollen allergen (Cry j1), cat allergen (Def f1), fungal allergen (Alt a1), dust mite allergen (Fel d1). Performance may vary across models.
³ Tested to remove min. 99.9% of S. aureus, K. pneumoniae, P. aeruginosa, MS2, E.Coli, H1N1, A.Niger.
⁴ Tested on TVOC, sulfure dioxide, nitrogen dioxide. Deodorization tested on ammonia, acetaldehyde, acetic acid."
*Min. reduction 99.9% of E.Coli & S. aureus