True HEPA Performance: 3 Stage HEPA filter removes 99.9% of airborne particles including dust dander, smoke, pollen and other allergens 3 stage HEPA filtration system: PRE-FILTER captures larger particles such as lint and pet hair HEPA FILTER traps smaller particles like dust, dander, and allergens; CARBON FILTER neutralizes odors Captures particles from the air: It is time to replace your HEPA filter when it becomes a dark gray color Filter lasts up to 3,000 hours of use or 3-6 month, whichever comes first Fits: CZ Clean Air Purifier models with H13 HEPA filters Includes 2 filters
