Price: $139.99 - $119.99
(as of Nov 09, 2025 02:36:46 UTC – Details)
Blue Pure 511i Max HEPASilent smart air purifier quickly cleans up to 465sqft living space in 30min or 193 sqft in about 12.5min on high. Independently evaluated for safety standards and third-party tested for performance as part of the AHAM Verifide Program for air cleaners, this air purifier has a Clean Air Delivery Rate (CADR) of 125 for fine smoke particles, dust and pollen. Get more out of the filter thanks to our proprietary RealTrack algorithm where fan speed, usage time and pollution levels are used to calculate exactly how dirty the filter is based on actual usage and tells you more accurately when to replace it within 9 months. Shop genuine Blueair Blue Pure F5MAX replacement filter designed for optimal performance: Blue Pure 511i Max air purifier replacement filter B08KPJG1HS. Also, available: F5MAX SmokeBlock Filter(B08KQLZXKF), and F5MAX AllergenBlock Filter(B08KQJBPQ2) to fit your needs. Blueair is the only line of air purifiers with a customizable, washable fabric pre-filter. Inspired by the latest Scandinavian design trend, Blue Pure Max air purifiers arrive in the Stockholm Fog pre-filter, while Limestone, Moss and Sand pre-filters are sold separately. *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.Noise refers to the dB(A) difference in acoustic power. **When similar CADR was measured, Blueair models with mechanical and electrostatic filtration achieved less noise with less energy than same models with only H13 HEPA mechanical filtration. ***Tested PM 2.5 (0.1 – 2.5 microns) up to 90min in a 30m3 room. Tested to remove min. 99.9% of S. aureus, K. pneumoniae, P. aeruginosa, MS2, E.Coli, H1N1, A.Niger.
BLUEAIR’S TOP-PERFORMING AIR PURIFIER LINE: Blue family’s new Pure Max series with our proprietary HEPASilent performance now even better with up to 83% faster cleaning and 50% less noise*
QUIET PERFORMANCE: Blue Pure 511i Max operates on low at 19 db and is never louder than 48 db. With lowest fan speed and fully dimmed lights, Blue Pure 511i Max cleans your air without keeping you up at night with Night mode.
FAST RELIEF: HEPASilent dual filtration technology delivers more clean air faster and uses less noise and energy than HEPA filtration alone** Cleans up to 465sqft living space in 30min or 193 sqft in about 12.5min on high
CLEAN AIR: Removes at least 99.97% of tiny airborne particles like viruses and smoke down to 0.1 microns, and captures pet dander, pollen, mold, allergen and dust; carbon filter traps light household odors from smoke, pets and cooking***
APP ENABLED: Blueair smart air purifier app scheduling, air quality monitoring, Clean Air ETA, Welcome Home geofencing and RealTrack accurate 6–9 month filter tracking technology are customizable features; Alexa voice control available
EASY TO USE BUTTONS: Intuitive display, 5-color AQI, and simple two-button design make it easy to control fan speed 1 – 3 including night mode, auto mode and child lock
MULTIPLE FILTER OPTIONS: 3 customized replacement filters for 511i Max. F5MAX Original Particle & Carbon Filter (B08KPJG1HS), F5MAX SmokeBlock Filter(B08KQLZXKF), and F5MAX AllergenBlock Filter(B08KQJBPQ2)
INDEPENDENTLY TESTED FOR PERFORMANCE & SAFETY, ZERO OZONE: AHAM Verifide for Performance (CADR); Ozone Safety Standards Certified by CARB; Zero Ozone Verified (<5 ppb) by Intertek Sustainability
Energy Star Most Efficient 2023; Blueair air purifiers use less energy (as low as 2.5W – 20W depending on fan speed) and less than an LED lightbulb on low
LET’S CLEAR THE AIR WITH BLUEAIR: Our Blue Pure Max air purifier comes with one filter pre-installed and a pre-filter for easy set up; This product is made for NORTH AMERICA USE ONLY and should only be used with input voltages between 110-120V
Customers say
Customers find the air purifier extremely quiet, efficient, and effective for bedrooms, with quick air cleaning capabilities and reduced dust levels. They appreciate its ease of use, with one customer noting how simple it is to replace the HEPA filter. The odor removal feature receives mixed feedback – while some customers report the smell is gone, others mention the unit itself has an unpleasant odor. The value for money aspect is also mixed, with some customers finding it well worth the price while others note the expensive replacement filters.
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