The air ducts beneath a crawl space require careful attention for maintaining high indoor air quality, IAQ. Two of our skilled SERVPRO technicians have opened this floor register to introduce high pressured air through the hose to loosen debris, pollen, mold spores, allergens, and other microorganisms that may be lurking within the ducts. We may finish this task with vacuuming with a HEPA filtration system. We strive to provide a safe and clean environment for our customers. Tell your friends.