[Compatibility Model] Compatible with for U Filter HHT270,HHT270W, HHT290 Series & Models FRF101B FHT170W FHT180W FHT190W FRF102B FHT170WCV FHT180X FHT180, FHT190V. [Effect] Dual action HEPA-Type air filters with built-in carbon pre-filter capture up to 99.97% of particles down to 0.3 Micrometre in size. effective HEPA carbon replacement filter pack from us. You'll notice the difference immediately in the air of your home. [Easy to replace] Installation is easy; no tools required. Simply remove and replace from your unit when needed. For best performance replace the old filter . [Warm Tips] Replace your HEPA Filter 2-3 months, replace pre filter 1-2 month. The Time of Replace Filter, is According to your Requirement. [Practicality] This high-efficiency two-stage True HEPA filtration is perfect for those with frequent or recurring allergies as it effectively with most pollen, mold spores, household dust, pet dander and smoke, so the air you is free from irritants.And helps redue unwanted odors from pets, cooking, smoking, wildfire, and harmful VOC's. Colour: as shown Material: plastic Package Contents: 2 x Filters 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.