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Replacement Particle+Carbon mesh filter (foldable) for Blue Pure 221
purified air in every mode
Engineered to perform
Double⁶ the filter lifetime thanks to our patent-pending filter design
it delivers clean
Classic 400 Series Particle Filter Filter:Classic 400 Series Particle Filter Subscription Replacement Particle+Carbon mesh filter (foldable)Blueair 400 Series Particle Filter
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