Indoor Mold: Public-Health Cleanup Guidance
Answer five questions to review general cleanup considerations. This tool does not diagnose a health condition, identify mold, or assess personal risk.
How it works
Color does not identify mold or risk
CDC says mold color does not necessarily indicate whether it is more or less dangerous. A photo, app, or quiz cannot identify a mold species, confirm hidden growth, or establish a health risk. If you see or smell mold, CDC advises cleaning it and fixing the moisture problem.
Symptoms need medical evaluation
CDC notes that damp and moldy environments may cause a variety of health effects, or none at all. Symptoms cannot establish that mold caused a problem. Discuss symptoms or health questions with a licensed health care professional.
When to seek medical care
Seek medical care for symptoms or urgent health concerns. This tool cannot determine a cause, severity, or appropriate medical action.
When to consult a cleanup professional
EPA says that in most cases a moldy area under about 10 square feet can be handled by the homeowner. For larger areas, major water damage, sewage contamination, or complex HVAC concerns, consult an experienced professional. Do not open HVAC equipment or use this tool as a substitute for an inspection.
FAQ
Does black color mean mold is toxic?
No. CDC says mold color does not necessarily indicate whether it is more or less dangerous. A photo or quiz cannot identify mold species or health risk.
Can this checklist tell whether mold caused symptoms?
No. Symptoms can have many causes. This checklist cannot diagnose a health condition or determine whether mold caused symptoms.
Is there a federal indoor mold exposure limit?
No. CDC states that there are no health-based standards for indoor mold. Clean visible mold and correct the moisture problem.
What should I do about health symptoms?
Seek medical care for symptoms or urgent health concerns. This checklist cannot determine a cause, severity, or appropriate medical action.
What should I do about visible mold?
CDC and EPA advise cleaning visible mold and correcting the moisture problem. For a large area, major water damage, or a complex concern, consult an experienced professional.