Blueair Blu 3450i Max Air Purifier Prefilter is a washable cover that captures larger particles at the front line. This reusable prefilter allows the primary filter to work less and last longer, reducing waste and ongoing costs. Use it with your Blueair purifier to maintain optimal performance.
Blueair's Blu 3450i Max Air Purifier Prefilter is a washable pre-filter cover designed to extend the life of your Blueair purifier. The reusable cover traps larger particles at the front line, letting the primary filter work less and last longer while reducing waste and ongoing replacement costs.
Reduce your need for primary filter replacements.
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