Formaldehyde is a colorless, strong-smelling gas commonly used in household products and industrial applications. It can be harmful to humans, especially with prolonged exposure.
🧪 Where Formaldehyde Is Found
Formaldehyde is found in many indoor environments, often released (off-gassed) from products such as:
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Building Materials
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Plywood, particleboard, fiberboard
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Laminate flooring, pressed-wood furniture
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Insulation materials (like urea-formaldehyde foam)
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Household Products
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Cleaning agents and disinfectants
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Air fresheners
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Cosmetics (like nail polish and hair products)
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Glues and adhesives
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Textiles & Clothing
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Wrinkle-resistant fabrics
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Curtains, carpets, and upholstered furniture
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Cigarette Smoke
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A major indoor source of formaldehyde
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Combustion Sources
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Gas stoves, fireplaces, and car exhaust
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Medical and Industrial Use
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Used in embalming fluids, laboratories, and as a preservative
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☠️ How Formaldehyde Is Harmful to People
Short-Term Exposure (Acute)
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Irritation of eyes, nose, throat, and skin
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Coughing and wheezing
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Headaches or nausea
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Asthma attacks or worsening of respiratory issues
Long-Term Exposure (Chronic)
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Sensitization—people may develop a formaldehyde allergy over time
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Cancer risk: Classified as a human carcinogen by the IARC (International Agency for Research on Cancer). Linked to nasal and throat cancers, and possibly leukemia with long-term exposure.
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Chronic respiratory problems—especially in children and elderly