The MicroFlow I Workstation from HEMCO Corp. is a ductless carbon filtered workstation equipped with activated carbon filtration, designed to collect small amounts of non-hazardous fumes and odors. Completely self-contained with integral recessed work surface to contain spills. Clear hood surround with safety viewing sash for user. Sash can be conformed for use with a microscope. Variable speed fan control provides the option of high and medium speeds, or low flow for sensitive operations. Operates on 115v AC, or 230v International, conforms to UL, CSA, & CE requirements. Electrical cord port exits left side. Easy change out of used filter, recommend filter change every 60-90 days. Filter life varies with usage.