Blueair 7400 Air Purifier Replacement Filter

Blueair replacement filters are genuine and specifically designed to enable optimal air flow and performance over time. When combined with electrostatic filtration, this results in faster and quieter cleaning compared to traditional HEPA filtration - a fact proven by no comparison to other models. The Blueair Protect 7400 SmartFilter is compatible with Protect 7470i and 7410i air purifier models and recommended for large spaces.

The SmartFilters feature a multi-layer design to deliver superior performance. The particle filter layer removes airborne particles like pollen, dust, mold spores, pet dander, viruses and bacteria, as well as fine smoke particles. The activated coconut carbon layer then absorbs gases, Volatile Organic Compounds (VOCs), chemicals, odors, and exhaust.

An accurate filter life tracking system helps users maximize the filter's lifespan and avoid unnecessary replacements. This algorithm calculates remaining filter life based on factors like fan speed, particle sensor data, and estimated filter loading. Users can view filter status data anytime via the companion app. Once a new filter is installed, the air purifier automatically resets the replace filter reminder by recognizing the SmartFilter's RFID chip.

For convenience, users can subscribe and save up to 10% on auto-delivered replacement filters, ensuring they're available when needed. Blueair's 24/7 GermShield technology also provides ongoing protection, activating even when the unit is in standby mode to kill 99% of germs caught by the filter. This technology has been tested against Staphylococcus albus, MS2 bacteriophage, and E.coli, though it has not been proven effective against SARS-CoV-2 or COVID-19 transmission.

Blueair's filters have been independently tested and verified for performance and safety. They are AHAM Verifide for Clean Air Delivery Rate (CADR), California Air Resources Board (CARB) certified for ozone safety standards, and Intertek Sustainability Program certified as having zero ozone emissions (<5 ppb). With a maximum lifespan of 1 year depending on room conditions, these SmartFilters are designed to provide reliable, long-lasting air purification.

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