Formaldehyde is a colorless, odorless, and irritating gas that is classified as a Group 1 carcinogen. Inhaling small amounts can cause eye and nasal irritation, leading to watery eyes and a runny nose. Long-term exposure can result in chronic poisoning and significant damage to the liver, lungs, and kidneys, with severe cases even leading to cancer. Chemical materials commonly used in newly renovated units often contain formaldehyde, benzene, and other harmful gases. Examples include latex