COMPATIBLE: Premium HEPA and Activated CARBON filter Fully Compatible with c545 Air Purifier. Part number 1712-0096-00, Filter S. TWO IN ONE:True HEPA Filter captures of airborne particles down to 0.3 Micrometre in size. Activated Carbon Filter traps larger particles in the air like dust, hairs, pet fur, lint, and absorbs household odors from pets, cooking, smoking and VOC's. PREMIUM QUALITY BUT AFFORDABLE PRICE: We deliver high quality, durable and long-lasting replacements, allowing the filter to last longer. They are an efficient investment. EASY TO INSTALL: Easy to replace and disposable, no tools required. Replace True HEPA filter every 6~8 months and Activated Carbon Filter every 3 months for optimal performance. Pre-Filter Dimensions: H: 13inch x L: 11inch x W: 0.2inch. Colour: black Material: plastic Size: 33 x 28 x 3cm Package Contents: 2 x HEPA filter 8 x Activated carbon filter. 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.