Replacemet Filter for Air Purifier,Compatible with PuroAir 130i Air Purifiers,Contains a pre-filter and activated carbon filter cartridge, suitable for use in homes, hotels, and offices. 4 Pack

["High-efficiency Filtration True HEPA FilterSet (2PACK).","Compatible with PuroAir 130i Air Purifiers.5-LAYER FILTRETION SYSTEM: Ultra-fine Pre-Filter layer & Blue Nano Nylon layer & H13 True HEPA layer & Activated Carbon layer & Sturdy Steel Mesh layer.","H13 True HEPA capture 99.97% of PM2.5 dusts PM2.5 down to 0.3 microns in size.","Please replace regularly to keep your machine fresh and clean,For best results, remove the filter once a month and clean with a soft brush or gently vacuum.","Top-Notch Quality Used for Maximum Customer Satisfaction Guaranteed, Change the HODSEUKIN replacement filter in minutes, no tools required."]