Nispira F1701HE True HEPA Replacement Filter Compatible with Hunter F1701HE/21 and 30613 Fits HT1701 HT1701BB F1701HE/PM 30100 30100B 30100W Air Purifiers Item Package Quantity:3 A pack of 4 filters

A pack of 4 filters

depending on quality and usage

75 inches (W) × 2

000 gallons of water

Nispira F1701HE True HEPA Replacement Filter Compatible with Hunter F1701HE/21 and 30613 Fits HT1701 HT1701BB F1701HE/PM 30100 30100B 30100W Air Purifiers Item Package Quantity:3 A pack of 4 filtersPremium HEPA air replacement filter compatible with Hunter air purifier. Compared to part F1701HE 21 and 30613 Compatible air purifier model HT1701 HT1701BB F1701HE PM 30100 30100B 30100W Air Purifiers. Preliminary filter helps extend HEPA filter life span by preventing hair, dust and debris from entering the machine. HEPA filter removes up to 99. 97 % of airborne particles size as small as 0. 3 microns. Activated Carbon inside captures household