Blue Pure 411i (3250i) Max, 411a Max Allergenblock Filter

AllergenBlock

Compatible with Blue Pure 411i (3250i) Max • 411a Max

Customize your filter

Blue Pure 411i (3250i) , 411a Max F4MAX Replacement Filter

This filter is only compatible with the Blue Pure 411i (3250i), 411a Max Air Purifiers

Designed for easy replacements, ensuring hassle-free maintenance for continuous clean air
Crafted with durable materials for a long-lasting filter
Effectively captures allergens like dust, pollen, and pet dander

App & Wifi connectivity
Alerts when you need a new a filter
RealTrack filter monitoring

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.

Main filter

Captures airborne particles, including pollen, dust & pet dander allergen

AllergenBlock Defense Coating

Neutralizes over 90% of allergen properties that trigger discomfort

Activated carbon

Traps light household odors

Meet our filters

Particle & Carbon

Our original filter. Removes allergens and traps light household odors from pets, cooking and smoke
SmokeBlock

2x more activated carbon than our original filter. Removes up to 99.99%³ of wildfire smoke
AllergenBlock⁵

Extra protection against allergens. Traps and neutralizes dust, pollen and pet dander

FAQ

What air purifier is this filter compatible with?

This filter is compatible only with the Blue Pure Max 411i and 411a 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?

4.0

Rated 4.0 out of 5 stars

Based on 35 reviews

Total 5 star reviews: 25 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 2 Total 1 star reviews: 7

74%would recommend this product

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35 reviews

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RL
ROBERT L.
Verified Buyer
I recommend this product
Rated 5 out of 5 stars
3 minutes ago
Great filters really filter out the ear good
Great filters they’re easy to change and they really clean the air well
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TM
Tommy M.
Verified Buyer
I recommend this product
Rated 5 out of 5 stars
1 week ago
Air filter
Works great 👍
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LM
Lee M.
Verified Buyer
I do not recommend this product
Rated 1 out of 5 stars
1 week ago
replaced filter
reading very polluted air and filter needs to be changed
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BlueEU Staging
1 week ago
Thank you for sharing us the feedback. We completely understand how alarming it is when your unit’s air quality indicator suddenly spikes to "very polluted" and stays there, especially when it's paired with a filter change light. It is incredibly frustrating when you are counting on the system to keep your room's air pristine and instead it's flashing warnings at you. Our support team will be reaching out to you directly to assist further and ensure that your concerns are properly addressed.
MM
Michael M.
Verified Buyer
I recommend this product
Rated 5 out of 5 stars
2 weeks ago
Very efficient removing pet dander
I have several of these filters throughout my home and they do a very effective job of removing pet dander from my home.
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PS
Paul S.
Verified Buyer
I recommend this product
Rated 5 out of 5 stars
1 month ago
Blueair 411
Purification filter for medium rooms. Very happy with my purchase.
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