1. The filter can reduce harmful odors and chemical odors in . 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 -JH50T-W -JH60T-W -JH70T-W. Colour: blue Material: fibers Size: 22x18x2cm Package Contents: 3 * 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store