Keep Your Blue Pure 211 Running at Peak Performance
Genuine replacement filters engineered for large room coverage with specialized filtration options for your specific air quality needs.
Product Options
Particle + Carbon Filter
Original formula. Removes allergens and traps light household odors. Subscribe & Save | 4.5/5 Stars
SmokeBlock Filter
2x activated carbon. Removes up to 99.99% of wildfire and indoor smoke. Subscribe & Save | Best for Smoke
AllergenBlock Filter
Extra allergen protection. Traps and neutralizes dust, pollen, and pet dander. Subscribe & Save | Best for Allergies
Pre-filter (Lunar Rock)
Washable fabric. Extends main filter life by capturing larger particles. Reusable | Accessory
Which Blue Pure 211+ Auto Filter Is Right for You?
Particle + Carbon Filter – Everyday Protection
- Removes dust, pollen, pet dander, and dust mite allergens
- Activated carbon traps light household odors
- Ideal for general air quality and everyday use
- Filter life: 6-9 months
- Best for: General dust and allergen control
SmokeBlock Filter – Maximum Smoke Elimination
- 2x more activated carbon than standard filter
- Removes up to 99.99% of wildfire and indoor smoke
- Superior heavy odor control
- Filter life: 6-9 months
- Best for: Smoke-prone areas and strong odors
AllergenBlock Filter – Allergy Relief
- Designed specifically for allergy sufferers
- Traps and neutralizes allergen particles
- Combines particle capture with odor control
- Perfect for homes with pets
- Best for: Allergies, asthma, and pet dander
Extend Filter Life with a Washable Pre-filter
The Blue Pure 211+ Pre-filter captures larger particles before they reach your main filter, extending filter life and improving overall performance.
- Extends main filter life by removing dust and debris
- Washable and reusable — rinse under water and air dry
- Lasts indefinitely — no replacement needed
- Easy maintenance — simple cleaning process
- Works with all filter types for enhanced performance
Subscribe & Save on Filter Replacements
How Subscribe & Save Works
- Select your filter type – Particle + Carbon, SmokeBlock, or AllergenBlock
- Choose delivery frequency – 3, 6, or 9-month intervals
- Save on first replacement – discounted first-time pricing
- Enjoy recurring savings – discounted future deliveries
- Cancel anytime – no penalties for pausing or adjusting
Why Choose Genuine Blueair Filters?
- 410 CFM CADR Rating for large room coverage up to 635 sq ft
- Precision Engineered — proper seals prevent unfiltered air bypass
- Reliable Performance — backed by 1-year warranty (3-year extended available)
- Customer Proven — verified reviews from Blue Pure 211 users
- Warranty Protection — genuine filters maintain your air purifier warranty
FAQs
Q: Are these filters compatible with both 211i Max and 211+ Auto?
A: Yes. The 211/211+ series filters works only with the 211+ Auto and the 211+. Verify your model on the label inside your air purifier.
Q: How do I choose between the three filter types?
A: Choose Particle + Carbon for general use. Choose SmokeBlock for wildfire smoke or heavy cooking odors. Choose AllergenBlock for allergies, asthma, or pets.
Q: How often should I replace my filter?
A: Filters last 6-9 months depending on air quality, usage time, and household conditions. Using a pre-filter can extend main filter life by capturing larger particles.
Q: What does the washable pre-filter do?
A: It captures dust and hair before they reach your main filter, extending main filter life and improving overall performance. Simply rinse under water, washing machine and air dry when needed.
Q: How do I install a replacement filter?
A: Installation takes under 2 minutes: (1) Unplug your unit, (2) Open the rear panel, (3) Lift out the old filter, (4) Insert the new filter securely, (5) Close the panel and plug back in.
Q: Why should I use genuine Blueair filters?
A: Third-party filters may not seal properly, allowing unfiltered air to bypass. Genuine Blueair filters are tested to deliver 410 CFM CADR performance and protect your warranty.
Q: What is SmokeBlock best for?
A: SmokeBlock with 2x activated carbon removes up to 99.99% of wildfire smoke and heavy indoor smoke. Ideal for wildfire-prone areas and strong cooking odors.
Q: Is AllergenBlock good for pet owners?
A: Yes. AllergenBlock is designed to trap and neutralize pet dander allergens. Perfect for homes with pets or pet allergies.
Q: Are these filters FSA/HSA eligible?
A: Yes! Blueair filters qualify as medical devices for FSA and HSA accounts. Use pre-tax healthcare dollars at checkout.
