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  1. Larry Loftus says:

    I was told by a neighbor that not all of the furnace’s that are in my area that have the carrier units in the attics do not have a filter. There is only 2 filters in my hallway.

    1. That is correct. Not all Carrier furnaces have filters. Some models have the filter built into the blower assembly, so there is no need for a separate filter. If your furnace is in the attic and you cannot find a filter, it is possible that the filter is built into the blower assembly.