Not tested¹Notes: Our filter has a strong filtration performance of ultra fine\nparticles. 99.97% filtration efficiency for 0.1~0.3?m airborne particulates,\nincluding pollen, dust, and animal dander allergens. Disclaimer: Tested by an\nindependent lab.²CADR and Coverage area are calculated based on Levoit's\nOriginal Filters and are not applicable to other replacement filters.³Notes:\nLevoit Original Filter is HEPA-grade while operating in Sleep Mode, as tested\nby an independent lab.?Notes: For the best performance and longest lifespan,\nuse official Levoit replacement filters.?Notes: We recommend replacing your\nfilters every 6 to 8 months.?Note: The voltage of the air purifier is 120V\nand is suitable for use only in the United States.?Only the Core 300S-P\nfeatures smart connectivity and Auto Mode. The Core 300-P and Core P350-P do\nnot include Auto Mode and require manual fan speed control.