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【PERFECT COMPATIBILITY】: The premium C545 replacement filter S is fully compatible with the Winix C545 air purifier. It has the part numbers 1712-0096-00 and 2522-0058-00. Please double-check your purifier model before making a purchase, as this filter is not compatible with the Winix C535, Winex, or Sharp FP P40cx models.

【VALUABLE PACKAGE】: Our C545 replacement filters come with 2 high-efficiency filters and 8 activated carbon filters, all neatly packaged in sealed plastic wraps. This efficient set ensures you get great value for your money. Simply remove the original filter and replace it with the new one.

【EXCELLENT FILTRATION】: The C545 replacement filter features a true high-efficiency filter, a high-efficiency pre-filter, and an activated carbon filter system. The pre-filter captures larger particles like hair, while the true high-efficiency filter effectively removes at least 99.97% of particles as small as 0.3 microns. The activated carbon filter, in turn, absorbs unwanted household odors, such as smoke and cooking smells, to create a clean and comfortable environment.

【EASY INSTALLATION】: Our true high-efficiency filter comes with a small plastic grab tag, which you should ensure is facing you when you insert the filter. This allows you to easily grab the tab and pull the filter out when it's time for replacement. The filter is designed for simple, tool-free installation and replacement, which should be done every 6-8 months for optimal performance. The activated carbon filter should be replaced every 3 months.

【100% SATISFACTION GUARANTEE】: We prioritize customer service and satisfaction. If you encounter any issues with the filter's fit, please contact us through our Amazon home page. We will do our best to help you resolve the problem.

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