Formaldehyde is a colourless gas with a characteristic pungent odour. It's widely used in many industries and causes severe health issues if used inappropriately.
Formaldehyde is highly toxic to humans, regardless of method of intake. Even very short-term exposure to formaldehyde irritates the eyes causing pain, redness, blurred vision and severe eye watering. It can irritate the nose and throat causing sneezing, soreness, coughing, shortness of breath, headaches and nausea.
The article outlines 15 places where formaldehyde can be found, in industrial and domestic scenarios.