What is a key hazard when using chemical substances in the lab?

The potential for exposure to toxic fumes is a critical hazard when working with chemical substances in a laboratory. Many chemicals can release harmful vapors that, if inhaled, pose serious health risks, including respiratory issues, neurological problems, or even long-term damage. This risk emphasizes the importance of using proper ventilation and personal protective equipment (PPE), such as masks or respirators, to minimize exposure. Ensuring adequate airflow helps to disperse these hazardous fumes, reducing the likelihood of harmful inhalation and protecting the health of individuals in the lab.

In contrast, other options may imply benefits to laboratory work that could lead to complacency regarding safety practices, which may directly or indirectly contribute to safety hazards.