Which of the following is an example of high hazard materials commonly found in facilities?

Flammable liquids are classified as high hazard materials because they pose significant risks related to combustion and fire incidents. These substances can easily ignite, leading to rapid spread of fire and potentially devastating consequences in a facility. Their volatility means they can generate flammable vapors, which can mix with air and create explosive mixtures. Proper storage, handling, and disposal of flammable liquids are critical in high hazard environments to prevent accidents that could endanger personnel and damage property.

In contrast, paper products, regular household waste, and recyclable materials do not typically carry the same level of hazard associated with combustibility and toxicity. While they may present some risk in certain contexts, they do not have the same immediate threat to safety as flammable liquids, which necessitates stringent safety measures in facilities where they are present.