Compatible Models The air filter replacement is specifically compatible with LEVOIT Core 300/Core 300S/Core 300-P VortexAir Air Air Purifier. Compared to Part # Core 300-RF-PA. THREE LAYERS OF FILTRATION POWER:Our Core 300 replacement filter features a 3-in-1 filtration system, including ultra-fine nylon pre-filter, true HEPA filter, and activated carbon filter. BREATHE & EASY FIXING - Replacement 300-P air purifier filter can effectively filter unpleasant odors and oil smoke problems. It is a good helper for families with pets, cooking and smokers. LONG LASTING PERFORMANCE Keep your air purifier clean with our replacement Core 300S HEPA filter. These filters ensure that your purifier continues to deliver fresh, purified air for 6-8 months (depending on your use and environment). CUSTOMER SERVICE If you have any quality problem about Core 300 replacement filters, please feel free to contact us. We have a professional customer service team to help you solve problems.