Official replacement filter for AP0601 air purifier - Why you need it: Using the officially designated replacement filter preserves the purifier’s optimal efficiency and capacity, ensuring consistent air quality. Off-brand filters can be inconsistent or unreliable and may damage the purifier. - 4-in-1 filter design: Nylon Pre-Filter captures hair, lint, and pet fur; HEPA filter traps 99.97% of particles as small as 0.3 microns, including household dust, pet dander, plant pollen, smoke, fibers, and pet fur; high-efficiency activated carbon filter quickly absorbs odors to improve air quality. - Odor and particle control: Effective against common sources of household odors such as diaper pails, teen room smells, wet dog odors, and cat litter odors. - Compatibility and performance: Specifically designed for AP0601 air purifiers to maintain maximum filtration efficiency and airflow. - Easy to replace: Filters are sealed to protect their lifetime. Remove the plastic packaging from the new filters before placing them into the air purifier. After installation, press and hold the filter replacement indicator to reset the change filter reminder. - Practical use scenarios: - Pet owners with dogs or cats, dealing with hair, dander, and related odors. - Homes with children or diaper pails where stronger odors can occur. - Rooms with smokers, cooking odors, or damp/animal odors such as wet dog or litter box smells. - Materials: Nylon Pre-Filter, HEPA filter, and activated carbon filter designed for effective particle and odor removal.