May 19, 2026
Not all air quality issues are visible, and some of the most significant risks come from particles that are far too small to detect without specialized equipment. Fine particulate matter, known as PM2.5, consists of particles that are small enough to enter deep into the lungs and even pass into the bloodstream.
In office environments, PM2.5 can originate from multiple sources, including outdoor pollution that enters through ventilation systems, dust generated during construction or renovation projects, inefficiencies within HVAC systems, and emissions from office equipment or combustion-related activities. Because these particles are so small, they can remain suspended in the air for extended periods, increasing the likelihood of inhalation.
Monitoring PM2.5 levels provides valuable insight into how effectively a building is managing its air quality. Elevated levels can indicate issues with filtration, ventilation rates, or external pollutant infiltration. Addressing these concerns helps ensure compliance with OSHA and environmental standards, improves occupant health outcomes by reducing exposure to harmful particles, and allows facility managers to fine-tune HVAC systems for optimal performance.
As awareness of indoor environmental quality continues to grow, PM2.5 has become one of the most important metrics for evaluating whether a building is truly providing a safe and healthy indoor environment.
Contact AMI to learn more.
