The Air Science Vent-Box ductless filtration system is designed to protect laboratory personnel from chemical vapors found inside of stand alone chemical safety cabinets. It utilizes the Air Science Multiplex Filtration System to adsorb, neutralize or trap the target chemicals or particulate while constant negative pressure removes vapors and particulates from the cabinet’s interior. Fumes are pulled via a flexible hose connected to the cabinet and clean, filtered air is returned to the laboratory, eliminating the need for external ducting and minimizing loss of treated, conditioned air from the facility. It is available in a variety of configurations to match the vapors or particulate removal requirements