1. The filter can reduce harmful odors and chemical odors in the house. The HEPA filter can capture 99.97% of dust, pollen, smoke, mold spores and pet dander. These air filters can trap particles as small as 0.3 Micrometres or larger, and filter out air pollution caused by PM 2.5. 2. Recommendation: Replace the filter every 2-3 months to optimize the performance of the air purifier. Apply to: Sharp KC-JH50T-W KC-JH60T-W KC-JH70T-W. Colour: blue Material: fibers Size: 22x18x2cm Package Contents: 6 x purifier filter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.