Advanced HEPA & Carbon FiltrationEquipped with a composite HEPA and activated carbon filter to effectively remove PM2.5, formaldehyde, smoke and household odors.3-Speed & Ultra-Quiet OperationAdjustable 3-speed fan for customized airflow, running as low as ≤28dB for undisturbed sleep in the bedroom.Convenient Smart Remote ControlSupports remote control operation and auto-shutoff timer, allowing you to set and manage purification without leaving your seat.Negative Ion Air FreshenerBuilt-in negative ion generator helps freshen indoor air, creating a forest-like environment in your home or office.Easy Filter ReplacementSide-slotted filter design makes replacement simple and quick, ensuring long-lasting purification performance.