For the past 12 years, the professionals at Quality Air Care have been helping homeowners breathe a little easier, both literally and figuratively. During air-duct cleaning sessions, crews improve indoor air quality by clearing ducts of dirt, dust, and very persistent encyclopedia salesmen. The company’s true area of expertise, however, is mold remediation. Comprehensive testing can identify spores—including those of black mold—floating through the air, on surfaces, or inside drywall. Once they’ve identified the problem, technicians can administer nontoxic mold-removal treatments to free houses from the clutches of these allergy-aggravating irritants.