Ductless Fume Hoods Recirculate Air

Purair ductless fume hoods provide operator protection when using hazardous substances. A face velocity at 100 fpm ensures containment of fumes, and an alarm alerts users when the airflow falls to an unacceptable level. The units operate at low noise levels and re-circulate air so as not to exhaust expensive conditioned and/or heated air into the atmosphere. All mechanisms in the head section are located on the clean side of the filter, preventing contamination. The main filter can be chosen from 14 different types of carbon, which include specialty media for vapors of organics, solvents, acids, mercury and formaldehyde. HEPA filters for particulate filtration are also available.