Which of the following is NOT a subcategory of inhalants?

The classification of inhalants includes various substances that are commonly misused for their psychoactive effects. Inhalants are typically divided into several subcategories based on their chemical composition and intended use. Fluorocarbons, propellants, and aerosols are all recognized subcategories.

Fluorocarbons are often found in refrigerants and some aerosol sprays. Propellants are used to expel products from containers, such as spray paints and deodorants. Aerosols encompass a wide range of products, including spray paints, cleaning agents, and other consumer goods that release vapors when sprayed.

In contrast, herbicides, while they may be inhaled, do not fall under the category of inhalants typically misused for psychoactive effects. Herbicides are specifically designed to control or kill unwanted plants and are not used primarily for their intoxicating properties like the other substances listed. Therefore, identifying herbicides as not being a subcategory of inhalants is correct.