✿【PERFECT FILTER】 With all core 300 filters are under h13 standard, this h13 true hepa filter replacement can be 99.97% effective in removing all odors and gases from your home. This air purifier replacement filter for levoit is made of premium HEPA 13 / MERV 17 materials to ensure best performance and a healthy lifestyle, helpful for improving the air quality at home ✿【WORTH YOUR MONEY】 Package including 4 pc core 300 filters, dimension: 7.5 x 7.5 x 5.7 inches. To ensure your lev-oit air purifier works properly and optimally, it is recommended to replace your filters every 3-6 months, depends on the usage ✿【3-IN-1 DESIGN】 Adopts 3-in-1 design ①Fine Preliminary Filter, ② H13 Grade True HEPA Filter, ③ Activated Carbon Filter to trap cooking smell, smoke, VOC and other odors. Choosing high quality & durable filter with maximum-efficiency can help you save more money ✿【COMPATIBLE MODEL】 Our core 300 replacement filter is fully compatible with levoit core 300 air purifier series, replace core 300-rf. To ensure a happy buying, please check twice whether your model matches our product parts before purchasing