Test immediately if you have new flooring, cabinetry, or furniture made with composite wood products, especially imported materials. Recent renovations with new building materials warrant testing due to ongoing off-gassing from adhesives and pressed wood products. Commercial buildings should test when employees report respiratory symptoms, eye irritation, or headaches that improve when they leave the building. Real estate transactions often require formaldehyde testing for properties with newer construction materials. Don’t wait for symptoms to appear – by then, health damage may already be done. Professional testing provides peace of mind and protects property values before problems develop.