Blueair

Blueair Replacement Filters by Purifier Model

Blueair filters are matched to the purifier model, not to a universal size. Find your purifier's model name in the table below, then open the filter that is listed for it. Each links to its product page so you can confirm the details before ordering.

Find Your Blueair Filter

Purifier Replacement filter
Blue Pure 121 Blue Pure 121 replacement filter
Blue Pure 211+ and 211+ Auto 211+ SmokeBlock filter; 211+ HEPASilent dual filtration filter
Blue Pure 211i Max F2MAX filter; SmokeBlock; AllergenBlock; Particle & Carbon
Blue Pure 311i Max F3MAX filter; 311i Max filter; AllergenBlock
Blue Pure 311i Max pre-filter Limestone Beige; Fog Grey
Blue Pure 311 Auto 311 Auto Everyday filter
Blue Pure 411i Max and 411a Max F4MAX filter
Blue Pure 411+ 411+ Particle & Activated Carbon filter
Blue Pure 511i Max 511i Max filter
Blue Pure Mini Max FMINI filter; AllergenBlock filter
Classic 400 Series Classic 400 particle filter
Classic 500/600 Series Classic 500/600 particle filter, 3-pack
DustMagnet 5400 Series DustMagnet 5400 ComboFilter
Protect 7470i and 7410i Protect 7400 SmartFilter
Blue Signature (large model) Blue Signature Large filter
H35i humidifier H35i replacement wick filter

Choosing Between Filter Versions

Some purifiers have more than one filter type listed, such as SmokeBlock, AllergenBlock, or Particle & Carbon. These names come from the product titles. Open the product page to see what each version is designed for, and check that it is listed for your exact purifier model before ordering. You can find the model name in your purifier's owner's manual or on the purifier itself.

How Often to Replace

Replacement timing depends on the model and how much you run it. Follow the schedule in your purifier's manual for your model, and replace sooner if airflow drops or the filter looks heavily loaded.

Our Fit Guarantee and Shipping

If you order the wrong filter, our Fit Guarantee and 30-day returns are described in our return policy. Shipping is free on all US orders, and orders are handled in 2 to 3 business days.

Blueair Filter Questions

Where do I find my purifier model? Check the owner's manual or the purifier itself, and match the model name in the table above.

Do I need the pre-filter too? The 311i Max pre-filters are listed separately from the main filter. See the product pages for details.

What if I ordered the wrong one? Contact us and see the return policy linked above.