Blue Signature™ Pre-Filter

Compatible with Blue Signature™ Air Purifier

4.0

Rated 4.0 out of 5 stars

10 Reviews

Nordic Fog

The most customizable air purifier you can get¹

Captures dust, hair, & pet dander before it reaches the main filter
Choose from 6 colors that blend effortlessly into your home
Inspired by Scandinavian nature and interior palettes
Machine-washable effortless maintenance
Device sold separately

Style it your way

Choose from 5 Scandinavian inspired colors

Our curated palette of hues blend soft neutrals with muted nature tones—perfect for creating a calm, contemporary atmosphere in any room.
Change up the look in seconds

Lift the pre-filter off the top of your device, then pull down the fresh one.
Machine washable for easy care

Machine wash on a gentle cycle, then let it air dry - fresh and ready to use again.

Only compatible with Blue Signature™

Check the label inside your device to confirm your model before selecting.

FAQ

Are the Blueair fabric pre-filters included with the purifier?

Each Blue Signature™ model comes with one pre-filter in its standard color. Additional colors are sold separately.

Does cleaning the pre-filter affect air purification performance?

Can I machine wash my pre-filter?

How do I remove or replace the pre-filter?

¹ Based on high-speed CADR by volume vs. similar competitive models

4.0

Rated 4.0 out of 5 stars

Based on 10 reviews

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

80%would recommend this product

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10 reviews

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SM
SHERRY M.
Verified Buyer
I recommend this product
Rated 5 out of 5 stars
1 month ago
Simply the BEST
We live in a beautiful place with mountains in our front yard and 3 dirt roads to get to the paved highway. Spring and Fall winds are epic with 45 to 70 mph wind gusts. There is fine powdery dirt in the air. We had two BLUEAIR 211's in our house for 8 years and they handled the tough conditions. I wanted something that had a smaller foot print so tried out another brand that makes vacuum cleaners I like. I bought a large one for the great room and a smaller one for the bedroom. They were DEAD in 3 months, even the one that said "no-change filter." I immediately went back to BLUE AIR and it was like coming home. Immediately the air in the whole house got better and the Blue Signature is perfect for the Great Room and the 311 in the bedroom is the right size. I LOVE BLUEAIR and can say that we have given it the Big Test in a stressful environment and this brand delivers on all of its promises. The more subtle, neutral colors for the pre-filters are much appreciated. The washable pre-filter makes a very big difference. Saturday is wash day and I pop the second pre-filter on while the used one is in the wash.
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BlueEU Staging
3 weeks ago
Thank you so much for sharing this incredible experience with your Blue Signature. It means a lot to hear how well it’s performing in such demanding conditions and that it truly feels like coming home. We’re glad the design, washable pre-filters, and performance are making a difference in your space. We appreciate your loyalty and are thrilled to be part of your home.
SB
Sue B.
Verified Buyer
I recommend this product
Rated 4 out of 5 stars
1 hour ago
Works too well
Love the design not so much the functioning. Purifier fan runs on high all day if it is set on auto and it can be quite loud. However; it is doing what it is designed to do; eliminating pollutants in the air. Bought the signature air purifier to minimize odor from ciggerette smoke in an open living area while attempting to quit smoking and to keep my house from smelling like an ashtray. So far the purifier is working pretty good and I am looking forward to being smoke free in the next few days and hopefully getting rid of the smoke smell in my house. The signature purifier not only helps eliminate odors but it has also kept the allergens in the air to a minimum as well as the dog dander and dust. My hope is that when the smoke smell has dissipated the purifier will only run as necessary and on a lower fan setting like the blue pure 311i+ does, as the fan speed sound can be rather loud & distracting.
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KS
Kathleen S.
Verified Buyer
I recommend this product
Rated 5 out of 5 stars
4 days ago
Extra pre filter in blue
I love having the extra pre filter so I can wash one but keep using my blue air. It’s quite nice looking.
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DK
Delmas K.
Verified Buyer
I recommend this product
Rated 5 out of 5 stars
1 week ago
What a difference clean air makes
We absolutely love our Blue Signature air purifier. The automatic function works mysteriously well. I say mysteriously because it kicks up when it senses the air is dirty and the power just kicks up as needed to clear. Allergies have definitely not been as bad this year as they have been in previous years.
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HP
Hillary P.
Verified Buyer
I recommend this product
Rated 4 out of 5 stars
1 week ago
Auto mode seems to work very well
This is my second Blueair, I like that it has an auto mode and it seems to work well. The only thing I worry about is the plastic guide on the top that shows you the different settings to press, has an air gap in there and it just feels cheesy like it's not going to peel off over time. If that plastic pulls off, I won't know how to operate it.
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BlueEU Staging
1 week ago
Thank you very much for taking the time to share your feedback with us. To access the instructions, please remove the plastic guide attached to the unit. You will also find the detailed instructions available in the user manual.

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