Your Next Steps Guide

Mold grows in damp environments and releases mycotoxins that can cause chronic inflammatory response syndrome (CIRS). Even hidden mold behind walls can affect health.

Low-level chronic CO exposure is often missed by standard detectors (which trigger at high levels). Symptoms mimic flu and can accumulate over months of exposure from faulty appliances or poor ventilation.

Small, chronic gas leaks may not produce a noticeable smell (mercaptan odorant dissipates in soil) and won't trigger standard gas detectors. Long-term low-level exposure causes neurological and respiratory symptoms.

Sewer gas contains hydrogen sulfide, methane, and ammonia. It enters homes through dried-out P-traps, cracked vent pipes, or faulty wax seals. Chronic exposure causes headaches, fatigue, and respiratory issues.

Hidden plumbing problems — slow leaks, improper venting, condensation — create conditions for mold growth and sewer gas intrusion. Older homes are especially vulnerable.

New construction, renovations, furniture, and cleaning products release volatile organic compounds (VOCs). Some people are especially sensitive to formaldehyde, benzene, and other chemicals.