Blueair Genuine Filter for Blue Pure 411i Max & 411a Max | F4MAX Replacement

Let’s clear the air with a filter designed for performance and a calmer home environment. The BLUEAIR Genuine Filter for Blue Pure 411i Max (B0BN2LH4RK) and 411a Max (B0BN2HZX1C) is built to work with the Blue Pure 411 Max series, delivering efficiency and consistency for everyday use. It is not compatible with older 411 models, such as the 411, 411 Plus, or 411 Auto, so choosing the right part matters for a seamless fit and dependable operation in your space.

Why choose BLUEAIR genuine filters

BLUEAIR’s HEPASilent dual filtration technology combines mechanical and electrostatic filtration to deliver more clean air with less noise and reduced energy consumption than many HEPA-only options. In real-world terms, that means your purifier can refresh the air in living areas more quietly while maintaining a comfortable energy profile.

• High filtration efficiency: filtration targets particles down to 0.1 microns with a strong performance profile in controlled tests.
• Comprehensive particle removal: independent testing references removal of a range of fine particles and select microbes under lab conditions.
• Odor control: a carbon layer helps neutralize light odors from cooking, pets, and smoke for a fresher feel in shared spaces.

Real-world use cases

• Open living rooms and family spaces where faster air refresh is noticeable throughout the day.
• Home offices or bedrooms where quiet operation and consistent airflow matter for focus and rest.
• After cooking or in pet-friendly homes where odors and dander can accumulate, helping to restore ambiance.

Quality you can rely on

BLUEAIR is widely recognized with independent testing for performance, with certifications such as AHAM Verifide for CADR, Quiet Mark, and CARB ozone safety standards. The brand emphasizes zero ozone and sustainability in its testing framework. This replacement filter is designed for the 411 Max series to help maintain consistent performance over time.

Tip: For convenience, consider subscribing to auto-delivered filter replacements so you never miss a change and your purifier can perform smoothly between cycles.

Note: The information reflects performance data and independent testing cited by BLUEAIR; benefits are presented as observed outcomes under test conditions and may vary by environment.