COMPATIBLE MODELS- HRF-H1 HEPA Filter H is fully compatible with HEPA Air Purifier models HPA050, HPA150, HPA060, HPA160 and HHT055, HHT155 Series, compared to #HRF-H1, #HRF-H2, and Filter H. (NOTE: Any use of the name or model designation for this product is made solely for purposes of demonstrating compatibility.) POWERFUL FILTRATION - Our hrf-h1 true hepa replacement filter fit for can easily works for 99.7% of suspended airborne matter down to 0.3 microns, such as dust, pet hair, dander, lint, etc. Our premium activated carbon pad is safe, with a mesh structure and stretch fabric material unpleasant household odors and wildfire smoke. Our HRF-H1 air filters are made of high quality and healthy materials at a cost-effective price, the . REGULAR REPLACEMENT - To optimal filtration efficiency, we recommend that replace HPA150 HEPA filter R every 6-8 months and activated carbon pre-filter every 2-3 months depending on your air quality and frequency of use. No tools are required, just replace and install our HPA150 air purifier filter replacement in a few minutes. Color: Black Material: Plastic Package Contents: 2 x Filter 4 x Filter cotton 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.