Definition
This chemical in building materials offgasses and causes respiratory and eye irritation. New construction may have elevated levels until ventilation clears it.
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Formaldehyde offgassing decreases over time. New homes and renovations may have elevated levels. Ventilation and air circulation reduce levels. Formaldehyde exposure can trigger asthma and allergies. Low-formaldehyde materials are increasingly available.
Pro Tip
New homes may have elevated formaldehyde. Ensure adequate ventilation first months.
Example
A home with new plywood subfloor and particleboard cabinetry showing elevated formaldehyde levels.