American Hydro Systems RR1 Rid O’ Rust 2X Concentration Stain Preventer

The Winix True HEPA + 4 Filter Activated Carbon Replacement Filter includes a True HEPA filter and 4 carbon pre-filters, helping to rid the air of dust, allergens and other particles
Use to replace worn out filters, Helps remove allergens and other airborne particles while absorbing odors and VOCs
Fits Winix air cleaner models 9000, 5000, 5300,5000B, P300