Lysol (also called Lizol) is a brand name of disinfectant household cleaners distributed by Reckitt Benckiser. It is marketed for cleaning, disinfecting food surfaces and odor removal. The name is used on aerosol sprays, pre-saturated tissues and liquid solution. The active ingredient in many of the Lysol products is benzalkonium chloride. This ingredient is highly toxic to fish, very highly toxic to aquatic invertebrates, moderately toxic to birds, and slightly toxic ('safe') to mammals. The original formulation of Lysol contained cresols. This formulation may still be available commercially in some parts of the world. Formulations containing chlorophenol are still available in the US.
Contributions by Genuine500, Ronald W Wise, and SV Resolution.