Bionaire BAPF40 PermaTech Permanent Filter.

Bionaire BAPF40 PermaTech Permanent Filter is a Genuine OEM Bionaire Filter.
BAPF40 PermaTech Permanent Filter doesn't need replacement unless gets damaged.
BAPF40 PermaTech Permanent filter fits BAP1400, BAP1500, BAP1502, BAP1525, BAP1700, BAP8500 and other models.
BAPF40 PermaTech Permanent Filter can also be used instead of BAPF30 HEPA filter and BAPF29 Dual filter.
Filter Dimensions, inch. 10 x 4.7 x 1.3
Filter lifetime: Permanent. Replace if gets damaged or ruined.
Bionaire BAPF40 PermaTech Permanent filter comes one filter per pack.