Case Study: Air contamination made her sick at home

A Crestwood homeowner had a feeling that something in her house was affecting her health. She wasn't imagining it—she'd been experiencing symptoms at home and couldn't shake the sense that the air was the cause. On a referral, she called Claro to find out for sure.

Claro's inspection and air testing confirmed her instincts in dramatic fashion. The downstairs area showed extreme contamination: a MoldSCORE of 300 (at the very top of the lab's scale) with airborne mold at 4,000 spores per cubic meter versus 370 outside. The critical finding was the presence of "marker" molds—the specific types (including Chaetomium at 680 spores) that signal active indoor mold growth, traced back to a past water event in the home. Given her health symptoms, she was advised to limit her time in the affected area until it could be treated.

Claro moved quickly. Using its patented dry fogging process, the team treated the whole home—including the basement and downstairs where the marker molds were concentrated—reaching the spores and residue throughout the structure. The whole-home approach matters most in exactly this kind of case, where mold from a past water event has had time to spread into dust, soft goods, and building cavities.

Afterward, Claro performed a post-treatment retest through an independent lab. The basement came back at just 53 CFU/m³—a trace of common, everyday mold, with the marker molds gone entirely. She had lab-verified proof that the home was clean, backed by Claro's one-year guarantee—and, just as importantly, she could feel comfortable and healthy in her own house again.