TRIPLE PURIFICATION: Exclusive carbon HEPA technology unique addition of activated carbon in the HEPA filter layer, 2 times more effective in odor removal than other filters.HIGH-EFFICIENCY FITRATION: Reduces up to 99.98% of dust, pet dander, as small as 0.3 Micrometre from the air, perfect for those who suffer from asthma.ODOR-REDUCING: Activated carbon in the HEPA filter layer traps for harmful odors and smokes dramatically, purifies the air for easier breathing and more restful eep.LONG LASTING: 5 Carbon HEPA filter and 5 charcoal pre-filter is enough to support one year's usage, change filter every 12-months and pre-filter every 3-months for optimal performance.Material:plasticcolour:Black + White Package Contents:5 x HEPA filter5 x Charcoal Pre-filter the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.