Which of the following is a primary function of filtration methods in industrial hygiene?

The primary function of filtration methods in industrial hygiene is to trap hazardous particulates and vapors. Filtration systems are designed to capture airborne contaminants, such as dust, mold spores, bacteria, smoke, and chemical vapors, thereby preventing them from being inhaled by workers. This is critical for maintaining a safe work environment and protecting the health of employees who may be exposed to harmful substances.

Filtration methods utilize various types of filters that have specific pore sizes, allowing them to effectively capture pollutants while allowing clean air to pass through. This process is essential for controlling exposure levels in various industries, including manufacturing, healthcare, and construction, where hazardous materials may be present.

While separating different particle sizes is a function of some filtration approaches, the primary aim in an industrial hygiene context is the removal of health hazards from the air. Noise pollution removal and humidifying air do not fall under the primary purposes of filtration methods as used in this field.