Blueair Blue Pure 311i Max Smart Air Purifier for Medium Rooms

Designed specifically for medium-sized rooms (like master bedrooms, living rooms, or playrooms), this smart device uses Blueair’s proprietary technology to clean air faster and quieter than traditional HEPA units. It creates a sanctuary where you can breathe freely, free from pet dander, dust, smoke, and viruses.

HEPASilent™: The Sound of Clean

Many air purifiers force you to choose between airflow and noise. The Blueair Blue Pure 311i Max uses HEPASilent™ dual filtration technology. By combining mechanical filtration with electrostatic charging, it allows air to pass through the filter more easily.

• 50% Quieter: It operates at a whisper-soft level (23dB on low), making it Quiet Mark certified and perfect for light sleepers.

• Faster Cleaning: It completely refreshes the air in a 387 sq. ft. room in just 12.5 minutes (or up to 929 sq. ft. in 30 minutes).

Smart Intelligence that Saves You Money

The “i” in 311i stands for intelligent. Unlike older purifiers that use a simple timer to guess filter life, this unit features the RealTrack algorithm.

• Accurate Tracking: It monitors actual fan speed, usage time, and pollution levels to tell you exactly when to change the filter. This prevents you from throwing away filters too early or using them too long.

• Welcome Home: Use the Blueair app to set up geofencing. The unit will go into standby when you leave and automatically scrub the air just before you return, ensuring you walk into a fresh home every time.

Form Meets Function (Washable Pre-Filter)

The Blueair Blue Pure 311i Max features a unique customizable fabric pre-filter. This outer layer catches large particles like pet hair and dust bunnies, extending the life of the main filter.

• Easy Maintenance: When the fabric gets dusty, simply vacuum it or toss it in the washing machine.

• Style it Your Way: The unit comes with the “Stockholm Fog” (Gray) pre-filter, but you can swap it for other colors (sold separately) to match your interior decor.

Comparison

Not sure if this is the right size?

• For smaller bedrooms, check out the Blueair 511i Max

• For large open-concept floors, view the Blueair 211i Max

Technical Specifications