BLUEAIR Blue Pure F2MAX Replacement Filter for 211i Max — HEPASilent 99.97% Capture + Carbon

The BLUEAIR Blue Pure F2MAX is an authentic replacement filter engineered for the Blue Pure 211i Max, using HEPASilent dual filtration to capture 99.97% of particles and reduce light household odors.

Keep your Blue Pure 211i Max running at peak efficiency with this genuine BLUEAIR replacement filter. It combines mechanical and electrostatic filtration (HEPASilent) plus activated carbon to tackle fine particles and everyday smells. The filter is AHAM-verified, Quiet Mark certified for low noise, and CARB-compliant for ozone safety, and it fits only the Blue Pure 211i Max model.

How does this filter remove ultrafine particles and allergens?

The F2MAX uses HEPASilent dual filtration, which merges mechanical capture and electrostatic attraction to trap microscopic particles more effectively than standard mechanical-only HEPA filters. It captures at least 99.97% of particles down to 0.1 microns, helping reduce airborne dust, pollen, pet dander, smoke, and many biological particulates.

• HEPASilent: mechanical plus electrostatic filtration for higher capture efficiency
• Removes particles as small as 0.1 microns at 99.97% efficiency
• Targets common allergens: pollen, mold spores, pet dander, dust
• Independent testing supports performance for airborne particulates

Will this filter reduce odors and household smells?

Yes—the F2MAX includes an integrated activated carbon layer designed to adsorb light household odors such as cooking smells, pet odors, and smoke. While it helps reduce many common smells, activated carbon is best for light to moderate odors rather than industrial or continuous heavy sources.

• Built-in activated carbon media for odor adsorption
• Effective against cooking, pet, and cigarette odors at household levels
• Not formulated for heavy industrial chemical vapors
• Works in tandem with particle filtration for cleaner-smelling air

How do I know when to replace the filter?

BLUEAIR’s RealTrack algorithm monitors actual purifier use and pollution exposure to estimate filter life and notify you when replacement is due, typically within a 6–9 month window depending on conditions. Regular replacement maintains airflow, CADR performance, and filtration efficiency.

• Smart lifetime tracking based on usage and pollution levels
• Typical replacement interval: every 6–9 months under normal home use
• Subscription options available for automatic deliveries and savings
• Replacing the filter restores optimal CADR, noise, and energy performance

Is this filter compatible with other Blueair models?

This F2MAX filter is specifically designed for the Blue Pure 211i Max; it installs readily into that unit and is not compatible with Blue Pure 211+ or 211+ Auto models. Confirm your purifier model before ordering to ensure proper fit and performance.

• Fits: Blue Pure 211i Max only
• Not compatible: Blue Pure 211+, 211+ Auto, or other Blueair models
• Genuine BLUEAIR product ensures intended fit and sensor calibration
• Installation is a simple drop-in swap with no tools required

Who is this for: The BLUEAIR Blue Pure F2MAX replacement filter is for Blue Pure 211i Max owners who want verified particulate removal plus odor reduction, quieter operation, and smart filter-life tracking. It’s a good choice for households with pets, seasonal allergies, cooking smells, or anyone prioritizing independently tested air-cleaning performance and easy maintenance.