Blue Pure 311i Max Particle + Carbon Filter

A filter for whatever’s in your air

Choose everyday Particle & Carbon, extra AllergenBlock protection, enhanced SmokeBlock odor removal or long-lasting EcoLast™ filtration

Easy to replace. Easy to remember.

Simple filter changes and RealTrack™ monitoring take the guesswork out of keeping your purifier performing its best.

Blue Pure 311i Max Filter

Particle + Carbon

Choose the that fits your air, from everyday particles and odors to allergens, smoke or longer-lasting filtration.

4.5

Rated 4.5 out of 5 stars

4.5 Stars (151 Reviews)

Designed for

Blue Pure 311i Max

Great for

Everyday dust & odors

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Why you’ll love it

More ways to personalize your clean air based on what matters most in your home.

Choose the right filter for your changing air needs
Tackle everyday dust, pollen, pet dander and odors
Add extra allergen support during high-allergen seasons
Get more carbon protection when smoke and odors are a concern
Get notified when it’s time for a replacement
Swap filters quickly with minimal upkeep

6 month filter lifetime
Particle + odor filtration
App replacement alerts
Quick & easy filter changes

Features & Technologies

Particle & Carbon captures everyday particles and light household odors.
AllergenBlock traps allergens and helps neutralize their irritating properties.
SmokeBlock uses 2x more activated carbon for smoke, smog and stronger odors.
EcoLast™ delivers up to double the filter life with 100% USDA Certified Biobased filter media.
Main filter media captures dust, pollen, pet dander and PM2.5.
Activated carbon helps trap cooking, pet and smoke odors.
RealTrack™ Technology tracks filter life based on actual use and pollution levels.
App filter alerts tell you when it’s time for a replacement.
Easy replacement design keeps routine maintenance simple.

A filter for whatever’s in your air

Choose everyday Particle & Carbon, extra AllergenBlock protection, enhanced SmokeBlock odor removal or long-lasting EcoLast™ filtration

Easy to replace. Easy to remember.

Simple filter changes and RealTrack™ monitoring take the guesswork out of keeping your purifier performing its best.

Smart Filtration, you can trust

Is this the right filter for you?

Find the Blueair model name on the label inside your air purifier.
Accurate filter lifetime tracking

Blueair’s proprietary RealTrack algorithm accurately calculates the remaining filter lifetime based on fan speed, usage time and pollution levels.
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Main Filter

Captures airborne particles including, PM 2.5, pollen, dust mite matter allergen & pet dander allergen

Activated Carbon

Traps light household odors from smoke, cooking odors and more

FAQ

What air purifier is this filter compatible with?

This filter is compatible only with the Blue Pure Max 311i+ air purifier.

How often should I replace my Blueair air purifier filter?

How do I know when it’s time to change my filter?

How do I reset the red light (filter light indicator) on my Blue Pure Max air purifier?

¹ Tested on PM 2.5 up to 90 mins

² Based on ELISA deactivation testing of Pollen (Cry J1), Pet Dander (Fel d1, Can F1), Dust Mite Matter (Der f1) on the filter media in 60 minutes.

³ Compared to standard in-unit filter. Based on removal testing of particles 0.4-0.7 μm in 60min in a 30m3 room. Performance may vary. Odors: Tested on benzene, toluene, nitrogen oxide, sulfur dioxide in 30 min.

⁵ AllergenBlock refers to inanimate allergens pollen, dust and pet dander

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Blue Pure 311i Max Particle + Carbon Filter

Is this the right filter for you?

Accurate filter lifetime tracking

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