The health effects of aldehydes depend on factors such as the type of aldehyde, the level of exposure, and the duration of exposure. Short-term exposure to high concentrations can cause irritation of the eyes, nose, and throat. Long-term exposure, particularly to formaldehyde, has been associated with an increased risk of developing respiratory issues and certain types of cancer. The International Agency for Research on Cancer (IARC) classifies formaldehyde as a known human carcinogen.
