Nispira True Hepa Activated Carbon Filter Set for Air400 Bissell Air Purifier 2520 and 2521 Item Package Quantity:2 Suggest to replace every 3

Suggest to replace every 3 - 6 months

dust and debris and smoke particles

dust and debris etc from passing through

10500 series

This in-line humidification filter is compatible with standard CPAP and BiPAP machines and masks

Nispira True Hepa Activated Carbon Filter Set for Air400 Bissell Air Purifier 2520 and 2521 Item Package Quantity:2 Suggest to replace every 3Nispira True HEPA filter with preliminary filter and activated carbon filter compatible with Air Purifier Air400 Compared to original part 2520 carbon filter and 2521 true HEPA filter Preliminary Filter to trap hair and pet dander. High quality HEPA filter capture 99. 97% of airborne particles down to 0. 3 microns. Activated carbon filter captures household odor and chemical VOCs Dimension: 1. 3" x 13. 7" x 16. 06". Suggest replacing the filter set