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Designed specifically for Blue Pure 311i+ Max.
Find the name of your air purifier on the label inside your air purifier.
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Blueair’s proprietary RealTrack algorithm accurately calculates the remaining filter lifetime based on fan speed, usage time and pollution levels.
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This air purifier features a hassle-free filter replacement system, allowing you to easily and quickly swap out the filter without any complicated procedures.
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Our unique HEPASilent™ filtration technology allows this filter to be less dense, meaning it requires less air pressure. With it installed, your air purifier will operate quieter while using less energy.
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This filter's unique structure is designed to filter high volumes of air while trapping even the smallest particles. It maintains maximum airflow because it's engineered to resist clogging.
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With the unique filter design at least 99.97%3 of airborne particles, even down to 0.1 microns, are removed, while using less energy and producing less noise.
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Recommended filter change6 months (4,380 hours) when used 24 hours a day
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Number of filters1
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This filter is compatible only with the Blue Pure Max 311i+ air purifier.
Press and hold down the LED button for 10 seconds to reset the replacement filter indicator.
Quick cleaning: Vacuum the fabric pre-filter every time you do a big cleaning at home or when you see dust building up. Vacuum the exterior of the fabric with a soft brush attachment.
Deep cleaning: Wash the fabric pre-filter every time you replace the Particle & Carbon filter, approximately every 6 months. Wash the fabric pre-filter in a washing machine according to the pre-filter’s label. Hang to dry.
Regular maintenance of your air purifier will help preserving optimal performance.
Disclaimers
¹ Comparing pollen CADR on high fan speed (Blue Pure 411a Max & 411i Max vs. Blue 411 Auto), other units may vary. Based on AHAM maximum allowable certified rating which may vary from the AHAM seal claimed valued.
² Tested on PM 2.5, pollen allergen (Cry j1), cat allergen (Def f1), fungal allergen (Alt a1), dust mite allergen (Fel d1). Performance may vary across models.
³ Tested to remove min. 99.9% of S. aureus, K. pneumoniae, P. aeruginosa, MS2, E.Coli, H1N1, A.Niger.
⁴ Tested on TVOC, sulfure dioxide, nitrogen dioxide. Deodorization tested on ammonia, acetaldehyde, acetic acid."
*Min. reduction 99.9% of S. aureus, K. pneumoniae, P. aeruginosa, MS2, E.Coli, H1N1, A.Niger