Many people, when exposed to even low levels of formaldehyde may experience allergic health effects. Many individuals have no symptoms at all even after being exposed to elevated levels of formaldehyde chemicals. Some of the associated signs and symptoms of formaldehyde poisoning involve:
Irritation of the eyes, throat, and nose
Burning and aching stomach and G.I. tract when the chemical is swallowed
Abnormally low blood pressure (hypotension) in severe cases
Arrhythmia (irregular heartbeat) in severe cases
Ongoing restlessness and irregular breathing occur in severe cases
Generally, children, older adults, and people with asthma and other breathing problems are more likely to experience symptoms. Data suggests formaldehyde takes about two years to off-gas back to normal levels.