Metal etching is a manufacturing process used to create intricate designs on metal surfaces, commonly employing corrosive chemicals such as hydrochloric acid (HCl), nitric acid (HNO₃), sulfuric acid (H₂SO₄), and ferric chloride (FeCl₃). While effective, these substances pose significant risks to human health and the environment. This article explores these hazards and outlines protective measures to mitigate risks.