The Portable Fume Extractor provides a vital engineering control for medical and laboratory facilities. The 68 in. (172.72 cm) long capture arm can easily be moved to capture chemical fumes, vapors, and particulate at the source. This model includes a portability handle, heavy-duty casters, a variable speed control, and an easy to change filter system. Both activated carbon and particulate filters can be housed in the filtration chamber to capture both fumes and particulate. Approximate Airflow: up to 350 CFM. Filters Available: HEPA Filter, ASHRAE Filter, ULPA Filter, Activated Carbon, and specialty-blended filtration [i.e. acid gas, mercury, aldehyde, and ammonia].