Levoit Core 300 Air Purifier Replacement Filter: Exclusively designed for Levoit Core 300 air purifier to maintain its peak performance. With cost-effective price to save much cost for your all year round air cleaning need. It is recommended to replace filters for every 6-8 months.TRUE HEPA TECHNOLOGY: Adopt True HEPA Filter with H13 grade which meets the High-Efficiency Particulate Air (HEPA) standard. It filters the fine airborne particles such as pet dander dust mites and pollen effectively helping improve allergies. TRAP LARGE PARTICLE: Ultra-fine Nylon Pre-Filter captures large particles such as dust lint fibers hair and pet fur also helpful to maximize the filter?s life. TRAP HOUSEHOLD ODORS: High-grade granular activated carbon filter physically absorbs unwanted odors and fume such as smoke cooking smells and pet odors as well as filtering volatile organic compounds (VOCs) ideal for households with pets cooking and smokers. Protect Your Investment: Use genuine Levoit replacement filter