BLUEAIR Blue Pure 511i Max Replacement Filter
- Blue Pure 511i Max only, not for Blue Pure 511 units
- 99.97% of particles down to 0.1 microns, including viruses and smoke
- HEPASilent dual filtration, mechanical plus electrostatic
- 2x more activated carbon for wildfire smoke and emissions
- RealTrack replacement window of 9 months, 6 to 9 months typical
- 19 decibels on low, Quiet Mark certified
- Zero ozone below 5 ppb, CARB certified
- 11.2 x 8.7 x 2.7 inches, 0.22 kilograms
Updated 25 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A genuine replacement filter for owners of the Blue Pure 511i Max who want the certified filtration and odor control the purifier was built around. It will not fit the Blue Pure 511, and the listing gives no third-party cross reference.
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ASIN: B08KPJG1HSCategory: Air Purifier Filters
Overview
A room running a Blue Pure 511i Max air purifier needs its filter swapped on schedule, and this cartridge slides into that housing in place of the old one. Air passes through a mechanical layer and an electrostatically charged layer together, so particles are trapped both by the media and by the charge, while the carbon stage handles household odors. The purifier tracks usage itself and signals when the cartridge is due.
Owners of the matching purifier get the filtration the unit was certified with, including the carbon load aimed at smoke and emissions. The limitation is narrow compatibility: the cartridge is cut for one model, and the listing offers no cross reference for any other Blueair unit.
Who it's for
Households already running the Blue Pure 511i Max get a direct swap that preserves the certified filtration and odor control. The carbon stage suits kitchens, pet areas and smoke season. Owners of any other Blueair purifier, including the Blue Pure 511, should look elsewhere because the housing and dimensions differ.
Pros and cons
- Genuine Blueair cartridge for one exact model
- Captures particles down to a fraction of a micron
- Dual mechanical and electrostatic filtration
- Extra carbon for smoke and odors
- Fits only the Blue Pure 511i Max
- No cross reference for other Blueair models
- Single filter per pack
- Warranty is short
Performance notes
Filtration depends on the seal between cartridge and housing, so the unit only performs as rated when the correct filter is seated fully. The electrostatic layer adds charge to the media, which is how fine particles are held that mechanical capture alone would pass. Carbon load determines how long odors stay suppressed, and the purifier's own tracking decides when output has fallen enough to warrant a change.
Specifications
| Brand | BLUEAIR |
|---|---|
| Dimensions & fit | |
| Item weight | 0.49 pounds |
| Item Dimensions L x W x Thickness | 11.2 × 8.7 × 2.7 inches |
| Particle retention size | 0.1 Micron |
| Capacity & performance | |
| Noise level | 19 dB |
| Construction & materials | |
| Color | Blue |
| Compatibility & installation | |
| Compatible Air Purifier Models | Blue Pure 511i Max (not Blue Pure 511) |
| Included components | |
| Unit Count | 1 |
| Included Components | Replacement Filter |
| Warranty & support | |
| Warranty Description | 60 days |
Frequently asked questions
Is this the same as a standard HEPA filter?
It is a HEPASilent dual filtration cartridge, combining mechanical and electrostatic filtration rather than mechanical media alone, and it also carries an activated carbon stage for odors. It is not a generic HEPA panel and it is not washable or reusable.
How often does the Blue Pure 511i Max need a new filter?
Blueair's RealTrack algorithm monitors usage and pollution levels and calculates the replacement window within a nine-month period, with regular replacement given as every six to nine months. The purifier alerts you when the cartridge is due.
Does this filter fit the Blue Pure 511?
No. It is made for the Blue Pure 511i Max and is not suitable for Blue Pure 511 units. Check the model on your purifier before ordering.
What does the activated carbon in this filter do?
The carbon stage traps light household odors from cooking, pets and smoking, and this cartridge carries twice the activated carbon for wildfire smoke and emissions protection. Particle capture is handled by the filtration layers.
What certifications does this replacement filter carry?
It meets AHAM Verifide performance standards, holds Quiet Mark certification for low noise operation, and is CARB certified for ozone safety with zero ozone emissions below five parts per billion. The purifier runs at nineteen decibels on its low setting.