Airthereal Adh50b Air Purifier 3 Filtration Stage True Hepa Filter Office Quiet

TRUE HEPA FILTRATION: Airthereal’s 3 Filtration Stage True HEPA Filter will help you breathe easier by removing particles as small as 0.3 microns. A human hair has a diameter of around 50 microns, so our filter can remove particles that are 500 times smaller than a human hair. SILENT OPERATION: Tired of lying in bed at night listening to the hum of your air purifier? No more! The max operating noise in sleep mode is a mere 22 decibels, making it even quieter than a whisper or a small public library. FILTER CHANGE REMINDER: All air purifier filters will decrease after a few months of usage. Airthereal air purifiers come with a built-in filter change reminder so that you can continue to keep the air in your home in the cleanest condition. For best results, use an authentic Airthereal ADH50B replacement filter available on. CARB & ETL CERTIFIED: ADH50B meets the strict safety requirements of CARB and ETL certification.