1. A 3-in-1 replacement filter combining True HEPA and activated carbon layers to capture airborne particles and neutralize household odors for cleaner air. 2. Traps 99.97% of dust, pollen, pet dander, and other particles as small as 0.3 microns, certified to meet strict HEPA standards. 3. High-density carbon layer absorbs common household odors from cooking, pets, smoke, and VOCs without masking scents. 4. Direct plug-and-play replacement for original Winix A231/A230 filters. Check filter status light on your purifier for timely replacement (recommended every 6-12 months). 5. Exclusively designed for Winix A231/A230 models to ensure perfect fit and airflow.
