H13 True Hepa Technology: filters 99. 97% dust, pollen, smoke, odors, mold spores, and pet dander. The air filters catch particles as small as 0.3 Micrometre 3-Stage Filtration System: H13 True HEPA Filter,Pre-filter and activated carbon filter reduce unwanted odors in your living spaces. Perfect for anyone wanting to improve air quality Properly sealed: filters are sealed to protect their . It is recommended to replace air filters every 6 months. Remove filters from plastic packaging before placing them into air purifier Material:plastic+cotton colour:As Shown Package Contents: 5 x Purifier filter Only the above package content, other products are not included. Note: Light 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.