[COMPATIBLE MODEL]These Core 300 Replacement Filter Compatible with for Core 300 VortexAir Air Purifier,Compared to Part # Core 300-. # Note: NOT FIT for Core MINI / Core 200S / Core 400S / Core 600S. [ FILTRATION]Air filter to choose for Core 300/Core 300S Replacement Filter with 3 level filtration systems for filter replacement core 300, # Ultra-fine Nylon Pre-Filter, # True HEPA filter and Activated carbon layer, provide you higher filtration efficiency,take out 99.97% of the substance as small as 0.03 microns, that you can enjoy now without going outside,perfect for wanting to improve air quality. [HIGH QUALITY]Our Core 300- Replacement Filter advanced low energy consumption and low-density structure technology,with lower wind resistance for higher efficiency and less pressure,ultra-dense True HEPA filter reduces air resistance and increases efficiency with its advanced folded design,ensuring maximum performance. Ideal for households with pets, heavy cooking, and smokers. [AFFORDABLE VALUE]2 Pack replacement for core 300 filter available for your time replace, which is very affordable, For your all-year-round air cleaning needs. For optimal performance, We recommend replacing your filters every 6 to 8 months. NOTE: Any use of the name or model designation for this product is made solely for purposes of demonstrating compatibility. Color: White Material: plastic Size:19.3x19.3x15cm Package Contents: 2Pack x for Core 300 Replacement 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.