Core 300 Air Purifier Replacement Filter for LEVOIT 3-in-1 True HEPA, High-Efficiency Activated Carbon, Core300-RF

These are HEAVY DUTY FILTERS and weight 15.7 oz each.  The regular weight for this filter size is 11.0 oz.

• Compatible with: Core 300, Core 300S, Core P350
• CORE 300 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 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, it also helps 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