For our best Synergy Tandem Air vacuum, this is the best filter set. For the Synergy S40P, this filter set traps dust and dander particles with a thick, pleated HEPA media filter, captures odors with a granulated charcoal filter and protects the direct air motor from debris with a direct air motor filter.

This replacement filter set for your Synergy S40P Tandem Air vacuum includes these filters:
1 pleated HEPA media filter
1 granulated charcoal filter
1 direct air motor filter.

This filter set will not fit the X9 or G9 models.