Filter-Monster Replacement Compatible with Blueair 400 Series Particle Filter; for Classic Air Purifier Models 402, 403, 405, 410, 450E, 455EB, 480i

I’m happy with this filter. It’s fits perfect in my blue air 403. Air flow seems the same, but I usually keep on low. Super easy to replace. As some have mentioned, there was a slight plastic smell at first but it went away in a day of running it.

Works great and a lot less money than the factory brand.

Quality Plus!

Great, quality filter replacement at a very competitive price.

fits, works just fine.

This is my second purchase of this brand and I have been very pleased with its performance, which from what I can tell is comparable to the official branded ones. Same results for significantly less cost.

Fits like a glove. Direct replacement for our 10 plus year old and going strong Blueair air purifier. Works perfectly.

great product

Je suis enchantée de votre produit , purificateur performant et je suis satisfaite . Céline Lussier

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