JERRY MASON / SCIENCE PHOTO LIBRARY JERRY MASON / SCIENCE PHOTO LIBRARY
Air pollution monitoring. Technician monitoring the air in a building's air handling unit. This device cleans and recycles a building's air, removing pollutants, dust and microorganisms and controlling the temperature and humidity. Tests such as this, in which the technician is using a probe (black) to test the air, ensure that air quality standards are met.
Model release available. Property release not required.