Formaldehyde (some preservatives, certain building materials/adhesives)

How Much Is Dangerous

Typical low-level household off-gassing from building materials (such as new furniture or flooring) represents more of a chronic irritation concern than an acute poisoning risk; direct ingestion or concentrated exposure represents a more significant, genuinely acute concern warranting prompt attention.

Symptoms

• Eye and respiratory irritation — watery eyes, sneezing, coughing
• Drooling and vomiting with ingestion
• Skin irritation with direct contact
• Difficulty breathing with significant inhalation exposure
• Headache-like behavior changes (excessive blinking, pawing at the face) have been anecdotally associated with significant airborne exposure, though this is less well documented than the more direct irritant effects listed above

Time to Symptoms

Irritation from direct contact or inhalation is typically immediate; effects from chronic, low-level off-gassing exposure develop more gradually over time.

First Aid Steps

• Move to fresh air for any inhalation exposure
• Rinse skin or eye contact thoroughly with water
• Contact a veterinarian for ingestion or any significant exposure

What Not To Do

• Do not use unvented adhesives or building products in poorly ventilated spaces a cat regularly occupies during the application or curing period

Veterinary Treatment

Supportive care as the general approach: decontamination, thorough eye/skin rinsing, and respiratory support as needed for more significant exposures. Ventilating the affected space thoroughly is an important complementary step alongside any needed veterinary care, to prevent ongoing re-exposure during recovery.

Toxic Compound

Formaldehyde, a chemical irritant and preservative found in some building materials, certain adhesives, and a small number of specimen-preservation products, which is directly irritating to skin, eyes, and the respiratory tract on contact or inhalation rather than acting through a more complex systemic metabolic pathway.