Formaldahyde

This item appears to mean formaldehyde. Formaldehyde is used in building materials, resins, pressed wood products, some textiles, disinfectants, and certain industrial settings. NCI and ACS describe evidence linking formaldehyde exposure to cancers including nasopharyngeal cancer and leukemia in some occupational studies. The main pathway is chronic inhalation exposure, which can irritate tissues, damage cellular components, and contribute to carcinogenic processes at sufficient dose and duration. Consumer exposure varies widely, so risk depends on concentration, ventilation, and frequency.