General description The 3X Air Purifiers Replacement Filter set includes essential components for maintaining optimal air quality. This set features a pre-filter layer, a HEPA filter layer, and an activated carbon filter layer, designed to effectively purify the air by capturing pollen, smoke, pet dander, and PM2.5 micrometer air pollution. Technical specifications Dimensions: 2.56 x 2.56 x 3.74 inches Color: White Material: Plastic Replacement cycle Recommended replacement every 3 to 6 months Filter life depends on operating time and existing air conditions Other information Package Contents: 3 x Air Purifier Filter Note: Light reflection and different displays may cause the color of the item to differ slightly from the actual product Measurement allowed error: +/- 1-3 cm