What Is Xylene, and Is It Harmful?
Xylenes are three related chemicals, and commercial xylene is a mixture of all three, according to the Agency for Toxic Substances and Disease Registry. They are colorless, highly flammable liquids with a sweet odor that evaporate into the air very quickly, and they are used in industry as a solvent and to make glues, paints, protective coatings and pesticides.
ATSDR says the most common ways to be exposed are smoking cigarettes or breathing other people’s cigarette smoke, and that motor vehicle exhaust and gasoline contain xylenes. Inside the home, it says xylenes can be released from burning fuel, such as gas stoves and ovens and wood-based fireplaces. Breathing high levels for a short period can cause nose and throat discomfort, make breathing difficult, and cause feelings of intoxication, headaches, dizziness and impaired reaction time, memory and vision, and ATSDR says breathing low levels over a long period can cause similar effects.
On cancer, ATSDR says the US Department of Health and Human Services has not evaluated xylenes, the EPA concluded the available data were inadequate to assess whether they cause cancer, and IARC classifies them as not classifiable as to carcinogenicity in humans. To limit exposure, it advises not storing gasoline cans in an attached garage, avoiding smoke from fires, and limiting time in heavy traffic.
Sources checked September 15, 2026. Every point below links the page it came from.
The sources behind this answer
- Government sourceATSDR says xylenes are three related chemicals, that commercial xylene is a mixture of all three, and that they are colorless, highly flammable liquids with a sweet odor that evaporate very quickly. ATSDR, CDC ↗
- Government sourceATSDR says xylenes are used in industry as a solvent and to make other products such as glues, paints, protective coatings and pesticides. ATSDR, CDC ↗
- Government sourceATSDR says the most common ways to be exposed to xylenes are smoking or breathing secondhand smoke, that vehicle exhaust and gasoline contain them, and that at home they can be released from gas stoves, ovens and wood-based fireplaces. ATSDR, CDC ↗
- Government sourceATSDR says breathing high levels of xylenes for a short period can cause nose and throat discomfort, difficult breathing, intoxication, headaches, dizziness and impaired reaction time, memory and vision, and that low levels over a long period can cause similar effects. ATSDR, CDC ↗
- Government sourceATSDR says the EPA concluded the available data were inadequate to assess whether xylenes cause cancer, and IARC classifies them as not classifiable as to carcinogenicity in humans. ATSDR, CDC ↗
- Government sourceATSDR advises not storing gasoline cans in an attached garage, avoiding breathing smoke from fires, and limiting time in heavy traffic to reduce exposure to xylenes. ATSDR, CDC ↗
Sources checked September 15, 2026. A brand statement is the company’s own claim, which we report but have not verified. Our grades are model-based estimates, not lab tests.