Is transformer oil harmful to humans?

Transformer oil is generally considered to be low in toxicity and is not harmful to humans under normal operating conditions. However, prolonged exposure to undiluted transformer oil may pose health risks, including skin irritation or potential respiratory issues if inhaled. It is important to handle transformer oil with care, using proper personal protective equipment to minimize any risk. While transformer oil is not classified as a carcinogen, as with any chemical substance, caution should always be exercised when managing and maintaining equipment that uses transformer oil.