<Trion Air Bear furnace filters must be replaced twice per year with AC & Heat. If you only have heat the Trion Air Bear filter requires only once per year replacement.

We only carry Genuine OEM Trion Air Bear original replacement furnace filters for your Air Bear air cleaner.

Air Bear filters are rated at Merv 8 with the exception of the 20 x 25 x 5 Air Bear which is now available in a MERV 11. It was originaly only produced in a MERV 8 as well but is now available in both MERV 8 and MERV 11. We only ship Merv 11 version of it regardless of the part number to promote a cleaner indoor air environment