About this item

• For best performance, recommend to replace the filters in every 6 months.
• Compatible with Winix C545 air purifier, compare to part number 1712-0096-00 and 2522-0058-00, Winix Filter S.
• Premium True Post Filter captures 99.97% of airborne particles down to 0.3 microns in size, composed of high quality filter, safe, and reliable.
• This essential collection of filter replacements features a pack of four true post filters.
• Easy to replace and install, no tools required.. It is recommended to replace HEPA filter every 6 months for optimal performance.