Easy to install and use Eliminates 99 97% of allergens and pollutants as small as 0 3 microns. 360 glass HEPA filter captures the ultrafine particles of the airplane including pollen pet dander. Vacuum seals - Rubber seals form a vacuum filter within the machine Replacing filter on a regular basis will help your machine work well filters should be replaced every 6 - 8 months. Formaldehyde removal technology: Imported cold catalyst, alumina and activated carbon combination, the first two absorption, the latter decomposition, breaking the traditional only rely on activated carbon adsorption, activated carbon once saturated will volatilize the acidic smell of the drawbacks. Product Name:Air Purifier Filter Applicable models:TP00 / TP03 / TP02 / AM11/BP01 The advanced polypropylene filter media(Class H13) captures up to 99.97% of particles as small as 0.1 microns in size from your indoor air and resists clogging and won't re-release particles back into the air. Ensure continued dependable performance of Dyson air purifier while maintaining the air clean for yr health and balance. Package Include: 1x Filter