Usage Tips: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 percent 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 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.