Particulate matter
Extracting particulate matter is crucial as it consists of solid and liquid micrometer-sized particles. In the United States, the Occupational Safety and Health Administration (OSHA) considers particulate matter a hazardous substance that must be regularly monitored for occupational safety. OSHA’s permissible exposure limits (PELs) and the guidelines provided under the General Duty Clause require that employers ensure the air quality is within safe limits.
For example, OSHA specifies that respirable dust (similar to alveolar A-dust) should not exceed a concentration of 5 mg/m³, and total dust (similar to inhalable E-dust) should not exceed 15 mg/m³. These particles are small enough to penetrate deep into the respiratory tract, reaching the alveoli and bronchioles of the lungs. Extracting particulate matter is the most effective protection against these harmful particles, ensuring a safer working environment.