Why is it critical to keep the doors of flammable/cumbustible cabinets well fitted?

Keeping the doors of flammable or combustible cabinets well fitted is crucial primarily to ensure liquid containment. These cabinets are specifically designed to store hazardous materials safely, and proper sealing minimizes the risk of leaks, spills, or vapors escaping into the surrounding environment. A tightly sealed cabinet helps prevent the accumulation of flammable vapors in the laboratory, thereby reducing the likelihood of fire or explosion.

While preventing odors, maintaining temperature, and restricting access are also important considerations, they do not directly address the primary safety concern of containing hazardous liquids. Ensuring liquid containment is fundamental in protecting both personnel and property, as well as complying with safety regulations regarding the storage of flammable substances.