Core P350 Filter Applicable Models : Core P350 Replacement filter Compatible with LEVOIT Core P350 Pet Air purifier, Repalce Part # Core P350-RF. Core P350 Pet Filter Excellent Performance : 3-in-1 h13 true HEPA filter and Activated Carbon Filter and Pre-filter, with a filtration effect of 99.97%. Core P350-RF Parts What included : Core P350 pet air purifier replacement filter Contains 2 Pack hepa filter replacement for LEVOIT. Premium Fabric : Core P350 Filter is made of high quality non-woven fabric and activated carbon, with low density and high efficiency to maximize the filtration effect while maximizing the service life of the air purifier filter. Easy replacement : Just take out the original air purifier replacement filter and put the new one in, no tools needed. (It is recommended that you change the filter every 6-8 months, depending on your usage). Product Description * Core P350 Filter Accessories Include : -- 2 Pack Core P350 filter. * Filter Compatible : -- Compatible with LEVOIT Core P350 Pet Air Purifier, repalce Part # Core P350 & Core P350-RF * Suggestion : -- It is recommended to change the Core P350 air purifier filter at least every 6-8 months. The actual number of replacements should be based on daily use. * Disclaimer : -- References to the brand "LEVOIT " and model numbers are shown only to describe h13 air purifier replacement filter compatibility.