• Advanced 3-Stage Filtration Technology - TrueCLEAN uses an unique three-step process that cleans the air in your home like never before. The Charge-Capture-Destroy process not only captures more particles than traditional media filters, but also deactivates up to 99% of those particles - keeping your home and family safe • Highly Effective - Captures a wide range of particles including airborne dust, pollen, smoke, mold spores and other bacteria • Replace Less Often - Lasts up to four times longer than a standard one-inch furnace filter. Replace every 6-12 months • Out of Sight, Out of Mind - TrueCLEAN's noiseless operation and out-of-sight installation allows you to enjoy clean air in your home without interfering with your daily life • Models: FH8000F1625, FH8000F2025, FH8000A1620, FH8000A2020, FH8000A2025 • 5-Year Warranty