Filter Bros 115115 Replacement Hepa Filter A Fits Winix Plasmawave 5500-2 5300-2 The Filter Bros Hand-Crafted Living Advanced Filter A size 21 is Compatible with Winix 115115 HEPA air filter purifiers - and is a replacement set that is also compatible with Winix Plasmawave Series Machines: 6300, P300, 5000, 5000b, 5300, 5500, 5500-2, 5300-2, 6300-2, 9000, 9500, AM90 and C535. Genuine Filter Bros 115115 Size 21 Filter 'A' is a full 1 year replacement set that is fully compatible with Winix Plasmawave series machines: 6300, P300, 5000, 5000b, 5300, 5500, 5500-2, 5300-2, 6300-2, 9000, 9500, AM90 and C535. This filter measures: 16.25 x 12.5 x 1.25 inches. 115115 replacement filter A compatible with Winix machines, change HEPA once every 12 months and carbon filter once every 3 months. 4 disposable activated carbon pre-filters are included to last the life of the HEPA filter and help reduce odors and trap large particles. Size 21 Hepa air filter is a performance purifier filter that captures up to 99.97% of particles as small as 0.3 micron. Reduce a range of particulates, and odors, for fresh pure air. Filter Bros replacement filters compatible with Winix plasmawave air purifiers includes 1 HEPA plus 4 carbon filters 115115 size 21. Silent purifiers are a great indoor home purification system. Our filters help by purifying and ensuring a cleaner household. Particulates are removed by the filters to keep smells and particulates out.