Introduction: The Irony of “Clean”

The Hidden Dangers of Hydrochloric Acid (HCl)

Hydrochloric acid is used in toilet and tile cleaners for dissolving limescale, rust, and hard water deposits. It works fast — but carries significant risks if mishandled.

❗ Health Risks of HCl Exposure

Hydrochloric acid is commonly used in toilet and tile cleaners to dissolve limescale, rust, and hard water deposits. While it works quickly, it carries significant risks if mishandled. The fumes can irritate the nose, throat, and lungs, especially in poorly ventilated bathrooms, and repeated exposure may worsen conditions such as asthma or bronchitis. Direct contact with the liquid can cause painful skin and eye burns, and children, the elderly, or anyone with preexisting health issues are particularly vulnerable to its effects.

⚠️ Important to note: HCl is not classified as a human carcinogen (IARC Group 3), but it is corrosive and requires gloves, eye protection, and proper ventilation when used.