Remove at least 99.97% of 0.3-micron airborne contaminants with the Levoit Core 300-P Original Replacement Filter. The Pre-Filter, Main Filter, and High-Efficiency Activated Carbon Filter work together to filter dust, pollen, smoke particles, pet dander, household odors, and VOCs (volatile organic compounds). Genuine Levoit replacement filters are the ideal choice to maintain the best performance of your Levoit air purifier.