The Winix Ultimate Size 21 4-Stage Replacement Filter Cartridge 114190 includes a anti-bacterial pre-filter, True HEPA filter, nano-silver mesh shield and more in a single cartridge for easy replacement. The entire cartridge is washable (for best results, wash every 3 months).
- Simple installation
- Provides one-year of filtration
- All filters are washable: activated carbon filter, nano-silver mesh shield, anti-bacterial pre-filter and 99.9% True HEPA filter
- Fits Winix PlasmaWave Air Cleaner models P300, 9500, 9000, 6300, 5000, 5300, 5500, and 5000B