Genuine Blueair Combination Particle + Carbon Replacement filter compatible with Blue Pure 411+, 411, and MINI air purifiers | Genuine Blueair replacement filters ensure superior product performance; use of non-genuine filters will void the warranty | Particle filter; Removes airborne particles such as pollen, pet dander, bacteria, mold, viruses, and dust from your indoor environment | Activated carbon mesh; A layer of carbon mesh traps light household odors, smoke, chemicals, and volatile organic compounds (VOC) | This filter is 100% recyclable, so the only thing you're adding back into the environment is clean air | We recommend replacing your filter about every 6 months when used 24 hours a day | Filter fibers are naturally antibacterial to ensure all you're getting is fresh air

It is important to only use genuine Blueair Replacement filters to maintain optimal performance and warranty, Filters that are not Blueair genuine will void your units warranty | Genuine Blueair replacement filter is compatible with Blueair classic 203, Blueair classic 270e, Blueair classic 303, Blueair classic 201, Blueair classic 250e, Blueair classic 215b, Blueair classic 210b, Blueair classic 205 | Particle filter reduces pollen, dust, pet dander, mold spores, viruses and bacteria | Recommended to change filter once every 6 months, or dependent on usage, this filter is eco-friendly and can be recycled after it's changed | Energy saving Blueair air filters save energy due to a low-density design and requiring less pressure to push air through the filters, the filters are also 100% recyclable, so the only thing you?re adding back into the environment is clean air