- Save Money: Contains 2 HEPA filters and 8 carbon pre-filters, the same as the original Winix filter, but only half the price. - No Odor: Made of high-quality materials and advanced technology, it is odorless and easy to use. - Fresh Air: Helps people who are sensitive to air breathe easier. Our filters can effectively filter smoke from wildfires, making indoor air fresh and pleasant. - Perfect Fit: Compatible with Winix C535 / 5300 / 5300-2 / 6300 /6300-2 / P300 / AM90 / C909 / 9800 Air Purifier, replacement part number 115115; Winix Air Purifier Filter Replacement and Winix Filter Replacement A. All manufacturer names and part numbers are for compatibility information only. - Use scenarios: - In homes near wildfires or with cooking odors, replace filters to reduce smoke and odors and improve indoor air quality. - For households with pets or sensitivity to odors, use to maintain a fresh, clean indoor environment. - In small offices or apartments, use to maintain consistent air quality for occupants who are sensitive to air quality.