A fume hood is a special type of air ventilation system equipped with powful and energy-efficient fans and high-quality filtration media. The hood primarily functions to enact as a safety engineering control and provide protection from fumes, particulate and dust against personnel. Secondarily, these fume hoods are built to protect users from application hazards such as fires, chemical spills and adverse reactions. The principle is the same for both types: air is drawn fron the front (open) side of the cabinet, and either expelled outside the building or made safe through filtration and fed back into the room.

Lab1st provides both ducted and recirculating (ductless) fume hoods. Ducted fume hood should connect to a remote exhaust system to safety ventilate outside the building. It employ multiple filters (optional) and a strong fan. It is suitable when there is a potential for being exposed to high volumes of particulate and toxic fumes. Ductless fume hood capture and remove contaminants and send clean, filtered air back into the lab without the need for external venting. Its air filtration systems are designed to keep harmful airborne contaminants away from the operator's respiratory zone while they work within the hood.