A man and woman holding pool rings, looking confused and concerned about a smell.

The ad opens with a man and woman holding inflatable pool rings, looking concerned. The man then looks into a crawl space, recoiling from a bad smell. The scene shifts to a technician entering a home and then to two technicians working in a crawl space, installing a vapor barrier and a dehumidifier. The ad concludes with the DFX logo and contact information.