THIS 1/2 HP AIR SCRUBBER CREATES A HEALTHY GROOMING ENVIRONMENT IN EVEN THE BUSIEST SALONS. FOUR STAGES OF FILTRATION EFFECTIVELY REMOVE HARMFUL AIRBORNE CONTAMINANTS SUCH AS HAIR DANDER PET ALLERGENS MOLD AND BACTERIA. THE TWO OUTERMOST NYLON MESH FILTERS CAPTURE 90 OF MEDIUM TO LARGE CONTAMINANTS AND CAN EASILY BE REMOVED AND HAND WASHED. THE 3RD STAGE OF FILTRATION IS COMPOSED OF ACTIVATED CARBON WHICH EFFECTIVELY ABSORBS AND NEUTRALIZES A WIDE RANGE OF ODORS AND OTHER POLLUTANTS. THE FINAL STAGE HEPA FILTER REMOVES 99.97 OF 0.3-MICRON SIZED PARTICULATES AS WELL AS OTHER PARTICULATE SIZES INCLUDING BACTERIA ALLERGENS AND SUB-MICRON SIZED DUST. A CONVENIENT INDICATOR LIGHT NOTIFIES YOU WHEN THE FILTERS NEED TO BE CLEANED OR REPLACED.