Add a stage of filtration to your existing Winix Air Purifier and improve your air cleaning power. The Winix Ultimate Pet Filter U replacement pack is the first line of defense against the largest particles， extending the life and efficiency of the other filters. Manufactured with Pet Owners in mind this 12 pack of replaceable filters can handle the furriest of buddies.
Compatible with Winix air cleaner model HR900， HR950， HR951， HR1000， 5300-2， 5500-2， 6300-2， C535， C555
Includes 12 ultimate pet filters， first line of defense traps the largest particles， dander， and pet hair
Extends the filter life of the remaining filters
Genuine Winix 1-year replacement filter pack， for optimal performance， it is recommended to change this filter once every month
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