Keep your air purifier working at peak performance with this complete replacement set. Designed to remove large particles, smoke and odors while capturing fine airborne contaminants down to 0.3 microns, the set protects the main filter, preserves airflow, and reduces maintenance. Key benefits Maintains strong airflow and filtration efficiency by using fresh carbon prefilters to catch large debris and odors before they reach the main filter. Removes fine particles such as dust, pollen and pet dander down to 0.3 microns with Filter C. Includes extra prefilters to avoid washing and reusing dirty pieces, extending the life of the main filter and lowering longterm cost. Simple swapandreset installation saves time. Compatibility Compatible with Air Purifier models: AC5000, AC5000e, AC5250pt, AC5350w, AC5350b, AC5350bca, AC5300b, cdap5500bca, cdap5500wsp Part numbers: FLT5000 filter C, FLT28CB4 What's included 12 carbon prefilters (removes large particles, smoke and odors) 6 Filter C units (captures particles as small as 0.3 microns) Performance and care Carbon prefilters catch larger contaminants and odors to prevent premature clogging of the main filter. these frequently to maintain airflow and protect the main filter. Filter C captures fine airborne particles (0.3 microns) — recommended replacement every 6 months. The extra prefilters in the pack eliminate the need to wash and reuse a dirty prefilter. Easy to install Open the back cover, remove the used filter, insert the filter, then hold down the timer/reset button to clear the replacement alert. Practical use scenarios Homes with pets: traps pet dander and reduces hair and odor buildup before it reaches the main filter. Kitchens and homes with smokers: carbon prefilters reduce smoke and cooking odors, improving indoor air quality quickly. Allergyprone households and shared spaces: Filter C helps reduce pollen, dust and other fine allergens that trigger symptoms. For results, use the full replacement set with compatible models listed above and follow the recommended replacement interval for Filter C (every 6 months). Part # information: FLT5000 filter C, FLT28CB4.