[Compatibility Model] Compatible with for U Filter HHT270,HHT270W, HHT290 Series & Models FRF101B FHT170W FHT180W FHT190W FRF102B FHT170WCV FHT180X FHT180, FHT190V. [Effect] action HEPA-Type filters with built-in carbon pre-filter capture up to 99.97% of particles down to 0.3 Micrometre in size. Get effective HEPA carbon replacement filter pack from us. You'll notice the difference immediately in the of your home. [Easy to replace] Installation is easy; no tools required. Simply remove and replace from your unit when needed. For best performance please replace the old filter on time. [Warm Tips] Replace your HEPA Filter Every 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 deals with most pollen, mold spores, household dust, pet dander and smoke, so the you breathe 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: 4 x Purifiers Filters Only the above package content, other products are not included. Note: Light reflection 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.