Duraflow Filtration Replacement Carbon Filter Compatible with HAP756, HAP615, HAP726, HAP750, HAP625, and HAP725- 6 x 9-1/4 x 1/4" - (4 Pack)
Activated carbon paper filter - Labbox Export
Amazon.com: 16x48 Cut-to-Fit Activated Carbon Filter Sheet (1 Pack) Multi-Use Charcoal Air Filter Pad for Air Purifiers, Air Conditioners, Air Vents : Home & Kitchen