Features 1、Absorbs Odors and Hair: If unpleasant odors or blowing pet hair bother you, with this kit you can ensure that your entire home smells pleasant in no time. 2、Powerful Filtration Performance: With powerful filtration performance at 0.3μm particle size, this kit reliably filters out possible allergens, house dust, spores and pollen from indoor air. 3、Appropriate People: This kit is especially suitable for allergy sufferers, pet owners or families with children, so if you happen to have related needs, then this one is for you. 4、Kit Contents: This replacement filter kit consists of a high efficiency particulate air filter screen and an activated carbon cartridge. 5、Widely Used: Our filters replace for Philips original FY3432 and FY3433 and are compatible for Philips air purifiers AC3256, AC3259 and AC4550 for long life. Specification Item Type: Air Purifier Filter Material: PP, PET, Activated carbon Filter Particle: 0.3 μm Package List 1 x High Efficiency Particulate Air Filter Screen 1 x Activated Carbon Filter Cartridge