BLUEAIR Blue Pure 311 Auto Genuine Replacement Filter, Particle and Activated Carbon, fits Blue Pure 311 Auto Air Purifier
$39.99
Price: $39.99
(as of Sep 26, 2025 21:11:31 UTC – Details)
The Blue Pure 311 Auto Particle and Activated Carbon Replacement Filter protects against both gaseous and particulate contaminates. An activated carbon mesh layer eliminates harmful gaseous pollutants such as volatile organic compounds (VOCs), tobacco smoke, and other odors. In addition, advanced polypropylene filter media removes particle pollutants down to 0.1 micron in size from your indoor air, such as pollen, dust, and pet dander. Using a 360-degree air intake and up to 4 times the filter surface area than competing replacement filters, the Blue Pure 311 Auto Particle and Activated Carbon Filter lasts longer, on average from 6 months to a year. Subscribe & save up to 10% on auto-delivered filters when replacement is needed; We recommend replacing your filter about every 6 months depending on usage. NO COMPARISON – 4X FILTER SURFACE AREA & 360 AIR INTAKE: Blueair models with HEPASilent’s mechanical and electrostatic filtration produced higher CADR, lower noise, and had lower energy consumption vs. the same models with only mechanical filtration (H13 filter). *Tested on E.coli, Influenza A (H1N1), A.niger with a minimum reduction rate of 99.9% in 60min.
Blueair Combination Particle + Carbon Replacement Filter compatible with Blue Pure 311 Auto air purifier
Genuine Blueair replacement filter; Specifically designed to maintain premium performance over time and ensures your warranty remains intact
Particle filter; Removes airborne particles such as pollen, pet dander, bacteria, mold, viruses, and dust from your indoor environment
Activated carbon mesh; A layer of carbon mesh traps light household odors, smoke, chemicals, and volatile organic compounds (VOC)
Recyclable, so the only thing you’re adding back into the environment is clean air; Please check your local recycling facilities for availability
Customers say
Customers find the air filter easy to install and appreciate its functionality, with one noting it keeps the unit performing at its absolute best. Moreover, the product receives positive feedback for its quality, air purification capabilities, and extremely quiet operation. However, customers disagree on the fit, with some reporting it’s too tall for the Blueair 311. Additionally, opinions on value for money are divided between those who consider it a great value and those who find it overpriced.
13 reviews for BLUEAIR Blue Pure 311 Auto Genuine Replacement Filter, Particle and Activated Carbon, fits Blue Pure 311 Auto Air Purifier
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Andy –
7 re-orders so far
As an owner of the Blue Pure 311 Auto, keeping it running at peak performance is a priority for my home’s air quality. This genuine SmokeBlock replacement filter is an absolute powerhouse and worth every penny.PROS:Superior Smoke and Odor Elimination: The “SmokeBlock” name is not marketing hype. The extra layer of activated carbon is noticeably effective at capturing smoke particles and neutralizing tough odors. After installing it, the difference in air freshness was apparent within hours. It handles cooking smells and pet odors with incredible efficiency.Perfect Fit and Genuine Performance: As an official BLUEAIR filter, it fits into the 311 Auto unit perfectly without any gaps or issues. The unit recognizes it immediately, and the auto function works flawlessly, ramping up when needed and staying quiet when air quality is good.Maintains 99.99% Capture Rate: The heart of any purifier is its filter. This replacement restores my purifier to like-new condition, confidently capturing allergens, dust, and other particles as advertised. The peace of mind it provides is invaluable.Easy to Install: The process is as simple as it gets: take the old one out, unwrap the new one, and put it in. It takes less than 30 seconds.CONS:The only con is the same with all high-quality HEPA filters: they are an ongoing cost of ownership. However, the performance and protection this specific filter offers justify the price completely.BOTTOM LINE:If you own a Blue Pure 311 Auto, this is the filter you want. Don’t settle for generic alternatives; the engineered performance and extra carbon layer in this genuine SmokeBlock filter make a significant, tangible difference in air purification. It keeps my unit performing at its absolute best.Highly recommended for maintaining top-tier air quality in your home.
John K –
Perfect fit
Fits my BluAir 311 perfectly just as advertised. Very easy to install and packaged very well. I’ll definitely be ordering again.
V. Makarewicz –
Quality product.
Iâll only buy manufacturer brand filters for my purifier. Easy to install and lasts a long time before needing to replace.
Placeholder –
Ease of use
Removing and replacing this filter was very simple. It was delivered fast & the price was right.
Maggie C –
Works well
I love these purifiers & filters. It runs so quietly and kicks on higher when Iâm burning candles or if the windows are open and thereâs a high allergy count. The filters seem to last for a long time, too.
NedP –
Overpriced but functions as expected
This filter works well with the product, as you would expect. It definitely filters out the stuff because when I replaced my first, it was filthy. The installation process was pretty easy but the instructions help quite a bit.
Megan –
Clean air!
Replacing these is super easy and user friendly! They last a long time in between replacements.
Ducati –
Make sure to order the correct size
This is a fine filter for the air purifier. However, be aware that the 311 is not the same as the 311i Max, and the filter sizes are different. I made the mistake of ordering the wrong one and spent quite a long time trying unsuccessfully to make it fit. Once I returned this filter and ordered the correct one, it slid on like a hand in glove.
Gisele G. –
Perfect and love my blueair purifier
Julianna10 –
Easy to replace
Majid –
I used this in our blue air pure 311 auto. This originalOne lasts alot longer and provides better filtration than the aftermarket thinner badly fitting ones. I would highly recommend just sticking with these ones and you will not have any issues!
samuel malka –
Product arrived as expected and description and authenticity is as described. I will order again. Blue air as really good reviews and surpasses many other brands that cost twice itâs size. I have one in each room but different models and so far so good. I have bad allergies and this helps me out a lot and also helps by reducing dust.
Eugene Tsoa –
Not bad